Age of Conquest: A Kings and Generals Podcast

3.192 Fall and Rise of China: Soviet–Japanese Neutrality Pact

Last time we spoke about the end of the battle of khalkin gol. In the summer of 1939, the Nomonhan Incident escalated into a major border conflict between Soviet-Mongolian forces and Japan's Kwantung Army along the Halha River. Despite Japanese successes in July, Zhukov launched a decisive offensive on August 20. Under cover of darkness, Soviet troops crossed the river, unleashing over 200 bombers and intense artillery barrages that devastated Japanese positions. Zhukov's northern, central, and southern forces encircled General Komatsubara's 23rd Division, supported by Manchukuoan units. Fierce fighting ensued: the southern flank collapsed under Colonel Potapov's armor, while the northern Fui Heights held briefly before falling to relentless assaults, including flame-throwing tanks. Failed Japanese counterattacks on August 24 resulted in heavy losses, with regiments shattered by superior Soviet firepower and tactics. By August 25, encircled pockets were systematically eliminated, leading to the annihilation of the Japanese 6th Army. The defeat, coinciding with the Hitler-Stalin Pact, forced Japan to negotiate a ceasefire on September 15-16, redrawing borders. Zhukov's victory exposed Japanese weaknesses in mechanized warfare, influencing future strategies and deterring further northern expansion. #192 The Soviet–Japanese Neutrality Pact Welcome to the Fall and Rise of China Podcast, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about the history of Asia? Kings and Generals have an assortment of episodes on history of asia and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel where I cover the history of China and Japan from the 19th century until the end of the Pacific War. Despite the fact this technically will go into future events, I thought it was important we talk about a key moment in Sino history. Even though the battle of changkufeng and khalkin gol were not part of the second sino-Japanese war, their outcomes certainly would affect it. Policymaking by the Soviet Union alone was not the primary factor in ending Moscow's diplomatic isolation in the late 1930s. After the Munich Conference signaled the failure of the popular front/united front approach, Neville Chamberlain, Adolf Hitler, and Poland's Józef Beck unintentionally strengthened Joseph Stalin's position in early 1939. Once the strategic cards were in his hands, Stalin capitalized on them. His handling of negotiations with Britain and France, as well as with Germany, from April to August was deft and effective. The spring and summer negotiations among the European powers are well documented and have been examined from many angles. In May 1939, while Stalin seemed to have the upper hand in Europe, yet before Hitler had signaled that a German–Soviet agreement might be possible, the Nomonhan incident erupted, a conflict initiated and escalated by the Kwantung Army. For a few months, the prospect of a Soviet–Japanese war revived concerns in Moscow about a two-front conflict. Reviewing Soviet talks with Britain, France, and Germany in the spring and summer of 1939 from an East Asian perspective sheds fresh light on the events that led to the German–Soviet Nonaggression Pact and, more broadly, to the outbreak of World War II. The second week of May marked the start of fighting at Nomonhan, during which negotiations between Germany and the USSR barely advanced beyond mutual scrutiny. Moscow signaled that an understanding with Nazi Germany might be possible. Notably, on May 4, the removal of Maksim Litvinov as foreign commissar and his replacement by Vyacheslav Molotov suggested a shift in approach. Litvinov, an urbane diplomat of Jewish origin and married to an Englishwoman, had been the leading Soviet proponent of the united-front policy and a steadfast critic of Nazi Germany. If a settlement with Hitler was sought, Litvinov was an unsuitable figure to lead the effort. Molotov, though with limited international experience, carried weight as chairman of the Council of Ministers and, more importantly, as one of Stalin's closest lieutenants. This personnel change seemed to accomplish its aim in Berlin, where the press was instructed on May 5 to halt polemical attacks on the Soviet Union and Bolshevism. On the same day, Karl Schnurre, head of the German Foreign Ministry's East European trade section, told Soviet chargé d'affaires Georgi Astakhov that Skoda, the German-controlled Czech arms manufacturer, would honor existing arms contracts with Russia. Astakhov asked whether, with Litvinov's departure, Germany might resume negotiations for a trade treaty Berlin had halted months earlier. By May 17, during discussions with Schnurre, Astakhov asserted that "there were no conflicts in foreign policy between Germany and the Soviet Union and that there was no reason for enmity between the two countries," and that Britain and France's negotiations appeared unpromising. The next day, Ribbentrop personally instructed Schulenburg to green-light trade talks. Molotov, however, insisted that a "political basis" for economic negotiations had to be established first. Suspicion remained high on both sides. Stalin feared Berlin might use reports of German–Soviet talks to destabilize a potential triple alliance with Britain and France; Hitler feared Stalin might use such reports to entice Tokyo away from an anti-German pact. The attempt to form a tripartite military alliance among Germany, Italy, and Japan foundered over divergent aims: Berlin targeted Britain and France; Tokyo aimed at the Soviet Union. Yet talks persisted through August 1939, with Japanese efforts to draw Germany into an anti-Soviet alignment continually reported to Moscow by Richard Sorge. Hitler and Mussolini, frustrated by Japanese objections, first concluded the bilateral Pact of Steel on May 22. The next day, Hitler, addressing his generals, stressed the inevitability of war with Poland and warned that opposition from Britain would be crushed militarily. He then hinted that Russia might "prove disinterested in the destruction of Poland," suggesting closer ties with Japan if Moscow opposed Germany. The exchange was quickly leaked to the press. Five days later, the first pitched battle of the Nomonhan campaign began. Although Hitler's timing with the Yamagata detachment's foray was coincidental, Moscow may have found the coincidence ominous. Despite the inducement of Molotov's call for a political basis before economic talks, Hitler and Ribbentrop did not immediately respond. On June 14, Astakhov signaled to Parvan Draganov, Bulgaria's ambassador in Berlin, that the USSR faced three options: ally with Britain and France, continue inconclusive talks with them, or align with Germany, the latter being closest to Soviet desires. Draganov relayed to the German Foreign Ministry that Moscow preferred a non-aggression agreement if Germany would pledge not to attack the Soviet Union. Two days later, Schulenburg told Astakhov that Germany recognized the link between economic and political relations and was prepared for far-reaching talks, a view echoed by Ribbentrop. The situation remained tangled: the Soviets pursued overt talks with Britain and France, while Stalin sought to maximize Soviet leverage. Chamberlain's stance toward Moscow remained wary but recognized a "psychological value" to an Anglo–Soviet rapprochement, tempered by his insistence on a hard bargain. American ambassador William C. Bullitt urged London to avoid the appearance of pursuing the Soviets, a view that resonated with Chamberlain's own distrust. Public confidence in a real Anglo–Soviet alliance remained low. By July 19, cabinet minutes show Chamberlain could not quite believe a genuine Russia–Germany alliance was possible, though he recognized the necessity of negotiations with Moscow to deter Hitler and to mollify an increasingly skeptical British public. Despite reservations, both sides kept the talks alive. Stalin's own bargaining style, with swift Soviet replies but frequent questions and demands, often produced delays. Molotov pressed on questions such as whether Britain and France would pledge to defend the Baltic states, intervene if Japan attacked the USSR, or join in opposing Germany if Hitler pressured Poland or Romania. These considerations were not trivial; they produced extended deliberations. On July 23, Molotov demanded that plans for coordinated military action among the three powers be fleshed out before a political pact. Britain and France accepted most political terms, and an Anglo-French military mission arrived in Moscow on August 11. The British commander, Admiral Sir Reginald Plunket-Ernle-Erle-Drax, conducted staff talks but could not conclude a military agreement. The French counterpart, General Joseph Doumenc, could sign but not bind his government. By then, Hitler had set August 26 as the date for war with Poland. With that looming, Hitler pressed for Soviet neutrality, or closer cooperation. In July and August, secret German–Soviet negotiations favored the Germans, who pressed for a rapid settlement and made most concessions. Yet Stalin benefited from keeping the British and French engaged, creating leverage against Hitler and safeguarding a potential Anglo–Soviet option as a fallback. To lengthen the talks and avoid immediate resolution, Moscow emphasized the Polish issue. Voroshilov demanded the Red Army be allowed to operate through Polish territory to defend Poland, a demand Warsaw would never accept. Moscow even floated a provocative plan: if Britain and France could compel Poland to permit Baltic State naval operations, the Western fleets would occupy Baltic ports, an idea that would have been militarily perilous and diplomatically explosive. Despite this, Stalin sought an agreement with Germany. Through Richard Sorge's intelligence, Moscow knew Tokyo aimed to avoid large-scale war with the USSR, and Moscow pressed for a German–Soviet settlement, including a nonaggression pact and measures to influence Japan to ease Sino–Japanese tensions. On August 16, Ribbentrop instructed Schulenburg to urge Molotov and Stalin toward a nonaggression pact and to coordinate with Japan. Stalin signaled willingness, and August 23–24 saw the drafting of the pact and the collapse of the Soviet and Japanese resistance elsewhere. That night, in a memorandum of Ribbentrop's staff, seven topics were summarized, with Soviet–Japanese relations and Molotov's insistence that Berlin demonstrate good faith standing out. Ribbentrop reiterated his willingness to influence Japan for a more favorable Soviet–Japanese relationship, and Stalin's reply indicated a path toward a détente in the East alongside the European agreement: "M. Stalin replied that the Soviet Union indeed desired an improvement in its relations with Japan, but that there were limits to its patience with regard to Japanese provocations. If Japan desired war she could have it. The Soviet Union was not afraid of it and was prepared for it. If Japan desired peace—so much the better! M. Stalin considered the assistance of Germany in bringing about an improvement in Soviet-Japanese relations as useful, but he did not want the Japanese to get the impression that the initiative in this direction had been taken by the Soviet Union." Second, the assertion that the Soviet Union was prepared for and unafraid of war with Japan is an overstatement, though Stalin certainly had grounds for optimism regarding the battlefield situation and the broader East Asian strategic balance. It is notable that, despite the USSR's immediate diplomatic and military gains against Japan, Stalin remained anxious to conceal from Tokyo any peace initiative that originated in Moscow. That stance suggests that Tokyo or Hsinking might read such openness as a sign of Soviet weakness or confidence overextended. The Japanese danger, it would seem, did not disappear from Stalin's mind. Even at the height of his diplomatic coup, Stalin was determined not to burn bridges prematurely. On August 21, while he urged Hitler to send Ribbentrop to Moscow, he did not sever talks with Britain and France. Voroshilov requested a temporary postponement on the grounds that Soviet delegation officers were needed for autumn maneuvers. It was not until August 25, after Britain reiterated its resolve to stand by Poland despite the German–Soviet pact, that Stalin sent the Anglo–French military mission home. Fortified by the nonaggression pact, which he hoped would deter Britain and France from action, Hitler unleashed his army on Poland on September 1. Two days later, as Zhukov's First Army Group was completing its operations at Nomonhan, Hitler faced a setback when Britain and France declared war. Hitler had hoped to finish Poland quickly in 1939 and avoid fighting Britain and France until 1940. World War II in Europe had begun. The Soviet–Japanese conflict at Nomonhan was not the sole, nor even the principal, factor prompting Stalin to conclude an alliance with Hitler. Standing aside from a European war that could fracture the major capitalist powers might have been reason enough. Yet the conflict with Japan in the East was also a factor in Stalin's calculations, a dimension that has received relatively little attention in standard accounts of the outbreak of the war. This East Asian focus seeks to clarify the record without proposing a revolutionary reinterpretation of Soviet foreign policy; rather, it adds an important piece often overlooked in the "origins of the Second World War" puzzle, helping to reduce the overall confusion. The German–Soviet agreement provided for the Soviet occupation of the eastern half of Poland soon after Germany's invasion. On September 3, just forty-eight hours after the invasion and on the day Britain and France declared war, Ribbentrop urged Moscow to invade Poland from the east. Yet, for two more weeks, Poland's eastern frontier remained inviolate; Soviet divisions waited at the border, as most Polish forces were engaged against Germany. The German inquiries about the timing of the Soviet invasion continued, but the Red Army did not move. This inactivity is often attributed to Stalin's caution and suspicion, but that caution extended beyond Europe. Throughout early September, sporadic ground and air combat continued at Nomonhan, including significant activity by Kwantung Army forces on September 8–9, and large-scale air engagements on September 1–2, 4–5, and 14–15. Not until September 15 was the Molotov–Togo cease-fire arrangement finalized, to take effect on September 16. The very next morning, September 17, the Red Army crossed the Polish frontier into a country collapsed at its feet. It appears that Stalin wanted to ensure that fighting on his eastern flank had concluded before engaging in Western battles, avoiding a two-front war. Through such policies, Stalin avoided the disaster of a two-front war. Each principal in the 1939 diplomatic maneuvering pursued distinct objectives. The British sought an arrangement with the USSR that would deter Hitler from attacking Poland and, if deterred, bind Moscow to the Anglo–French alliance. Hitler sought an alliance with the USSR to deter Britain and France from aiding Poland and, if they did aid Poland, to secure Soviet neutrality. Japan sought a military alliance with Germany against the USSR, or failing that, stronger Anti-Comintern ties. Stalin aimed for an outcome in which Germany would fight the Western democracies, leaving him freedom to operate in both the West and East; failing that, he sought military reassurance from Britain and France in case he had to confront Germany. Of the four, only Stalin achieved his primary objective. Hitler secured his secondary objective; the British and Japanese failed to realize theirs. Stalin won the diplomatic contest in 1939. Yet, as diplomats gave way to generals, the display of German military power in Poland and in Western Europe soon eclipsed Stalin's diplomatic triumph. By playing Germany against Britain and France, Stalin gained leverage and a potential fallback, but at the cost of unleashing a devastating European war. As with the aftermath of the Portsmouth Treaty in 1905, Russo-Japanese relations improved rapidly after hostilities ceased at Nomonhan. The Molotov–Togo agreement of September 15 and the local truces arranged around Nomonhan on September 19 were observed scrupulously by both sides. On October 27, the two nations settled another long-standing dispute by agreeing to mutual release of fishing boats detained on charges of illegal fishing in each other's territorial waters. On November 6, the USSR appointed Konstantin Smetanin as ambassador to Tokyo, replacing the previous fourteen-month tenure of a chargé d'affaires. Smetanin's first meeting with the new Japanese foreign minister, Nomura Kichisaburö, in November 1939 attracted broad, favorable coverage in the Japanese press. In a break with routine diplomatic practice, Nomura delivered a draft proposal for a new fisheries agreement and a memo outlining the functioning of the joint border commission to be established in the Nomonhan area before Smetanin presented his credentials. On December 31, an agreement finalizing Manchukuo's payment to the USSR for the sale of the Chinese Eastern Railway was reached, and the Soviet–Japanese Fisheries Convention was renewed for 1940. In due course, the boundary near Nomonhan was formally redefined. A November 1939 agreement between Molotov and Togo established a mixed border commission representing the four parties to the dispute. After protracted negotiations, the border commission completed its redemarcation on June 14, 1941, with new border markers erected in August 1941. The resulting boundary largely followed the Soviet–MPR position, lying ten to twelve miles east of the Halha River. With that, the Nomonhan incident was officially closed. Kwantung Army and Red Army leaders alike sought to "teach a lesson" to their foe at Nomonhan. The refrain recurs in documents and memoirs from both sides, "we must teach them a lesson." The incident provided lessons for both sides, but not all were well learned. For the Red Army, the lessons of Nomonhan intertwined with the laurels of victory, gratifying but sometimes distracting. Georgy Zhukov grasped the experience of modern warfare that summer, gaining more than a raised profile: command experience, confidence, and a set of hallmarks he would employ later. He demonstrated the ability to grasp complex strategic problems quickly, decisive crisis leadership, meticulous attention to logistics and deception, patience in building superior strength before striking at the enemy's weakest point, and the coordination of massed artillery, tanks, mechanized infantry, and tactical air power in large-scale double envelopment. These capabilities informed his actions at Moscow, Stalingrad, Kursk, and ultimately Berlin. It is tempting to wonder how Zhukov might have fared in the crucial autumn and winter of 1941 without Nomonhan, or whether he would have been entrusted with the Moscow front in 1941 had he not distinguished himself at Nomonhan. Yet the Soviet High Command overlooked an important lesson. Despite Zhukov's successes with independent tank formations and mechanized infantry, the command misapplied Spanish Civil War-era experience by disbanding armored divisions and redistributing tanks to infantry units to serve as support. It was not until after Germany demonstrated tank warfare in 1940 that the Soviets began reconstituting armored divisions and corps, a process still incomplete when the 1941 invasion began. The Red Army's performance at Nomonhan went largely unseen in the West. Western intelligence and military establishments largely believed the Red Army was fundamentally rotten, a view reinforced by the battlefield's remoteness and by both sides' reluctance to publicize the defeat. The Polish crisis and the outbreak of war in Europe drew attention away from Nomonhan, and the later Finnish Winter War reinforced negative Western judgments of Soviet military capability. U.S. military attaché Raymond Faymonville observed that the Soviets, anticipating a quick victory over Finland, relied on hastily summoned reserves ill-suited for winter fighting—an assessment that led some to judge the Red Army by its performance at Nomonhan. Even in Washington, this view persisted; Hitler reportedly called the Red Army "a paralytic on crutches" after Finland and then ordered invasion planning in 1941. Defeat can be a stronger teacher than victory. Because Nomonhan was a limited war, Japan's defeat was likewise limited, and its impact on Tokyo did not immediately recalibrate Japanese assessments. Yet Nomonhan did force Japan to revise its estimation of Soviet strength: the Imperial Army abandoned its strategic Plan Eight-B and adopted a more defensive posture toward the Soviet Union. An official inquiry into the debacle, submitted November 29, 1939, recognized Soviet superiority in materiel and firepower and urged Japan to bolster its own capabilities. The Kwantung Army's leadership, chastened, returned to the frontier with a more realistic sense of capability, even as the Army Ministry and AGS failed to translate lessons into policy. The enduring tendency toward gekokujo, the dominance of local and mid-level officers over central authority, remained persistent, and Tokyo did not fully purge it after Nomonhan. The Kwantung Army's operatives who helped drive the Nomonhan episode resurfaced in key posts at Imperial General Headquarters, contributing to Japan's 1941 decision to go to war. The defeat of the Kwantung Army at Nomonhan, together with the Stalin–Hitler pact and the outbreak of war in Europe, triggered a reorientation of Japanese strategy and foreign policy. The new government, led by the politically inexperienced and cautious General Abe Nobuyuki, pursued a conservative foreign policy. Chiang Kai-shek's retreat to Chongqing left the Chinese war at a stalemate: the Japanese Expeditionary Army could still inflict defeats on Chinese nationalist forces, but it had no viable path to a decisive victory. China remained Japan's principal focus. Still, the option of cutting Soviet aid to China and of moving north into Outer Mongolia and Siberia was discredited in Tokyo by the August 1939 double defeat. Northward expansion never again regained its ascendancy, though it briefly resurfaced in mid-1941 after Germany's invasion of the Soviet Union. Germany's alliance with the USSR during Nomonhan was viewed by Tokyo as a betrayal, cooling German–Japanese relations. Japan also stepped back from its confrontation with Britain over Tientsin. Tokyo recognized that the European war represented a momentous development that could reshape East Asia, as World War I had reshaped it before. The short-lived Abe government (September–December 1939) and its successor under Admiral Yonai Mitsumasa (December 1939–July 1940) adopted a cautious wait-and-see attitude toward the European war. That stance shifted in the summer of 1940, however, after Germany's successes in the West. With Germany's conquest of France and the Low Countries and Britain's fight for survival, Tokyo reassessed the global balance of power. Less than a year after Zhukov had effectively blocked further Japanese expansion northward, Hitler's victories seemed to open a southern expansion path. The prospect of seizing the resource-rich colonies in Southeast Asia, Dutch, French, and British and, more importantly, resolving the China problem in Japan's favor, tempted many in Tokyo. If Western aid to Chiang Kai-shek, channeled through Hong Kong, French Indochina, and Burma could be cut off, some in Tokyo believed Chiang might abandon resistance. If not, Japan could launch new operations against Chiang from Indochina and Burma, effectively turning China's southern flank. To facilitate a southward advance, Japan sought closer alignment with Germany and the USSR. Foreign Minister Yosuke Matsuoka brought Japan into the Tripartite Pact with Germany and Italy, in the hope of neutralizing the United States, and concluded a neutrality pact with the Soviet Union to secure calm in the north. Because of the European military situation, only the United States could check Japan's southward expansion. President Franklin D. Roosevelt appeared determined to do so and confident that he could. If the Manchurian incident and the Stimson Doctrine strained U.S.–Japanese relations, and the China War and U.S. aid to Chiang Kai-shek deepened mutual resentment, it was Japan's decision to press south against French, British, and Dutch colonies, and Roosevelt's resolve to prevent such a move, that put the two nations on a collision course. The dust had barely settled on the Mongolian plains following the Nomonhan ceasefire when the ripples of that distant conflict began to reshape the broader theater of the Second Sino-Japanese War. The defeat at Nomonhan in August 1939, coupled with the shocking revelation of the German-Soviet Nonaggression Pact, delivered a profound strategic blow to Japan's imperial ambitions. No longer could Tokyo entertain serious notions of a "northern advance" into Soviet territory, a strategy that had long tantalized military planners as a means to secure resources and buffer against communism. Instead, the Kwantung Army's humiliation exposed glaring deficiencies in Japanese mechanized warfare, logistics, and intelligence, forcing a pivot southward. This reorientation not only cooled tensions with the Soviet Union but also allowed Japan to redirect its military focus toward the protracted stalemate in China. As we transition from the border clashes of the north to the heartland tensions in central China, it's essential to trace how these events propelled Japan toward the brink of a major offensive in Hunan Province, setting the stage for what would become a critical confrontation. In the immediate aftermath of Nomonhan, Japan's military high command grappled with the implications of their setback. The Kwantung Army, once a symbol of unchecked aggression, was compelled to adopt a defensive posture along the Manchurian-Soviet border. The ceasefire agreement, formalized on September 15-16, 1939, effectively neutralized the northern front, freeing up significant resources and manpower that had been tied down in the escalating border skirmishes. This was no small relief; the Nomonhan campaign had drained Japanese forces, with estimates of over 18,000 casualties and the near-total annihilation of the 23rd Division. The psychological impact was equally severe, shattering the myth of Japanese invincibility against a modern, mechanized opponent. Georgy Zhukov's masterful use of combined arms—tanks, artillery, and air power—highlighted Japan's vulnerabilities, prompting internal reviews that urged reforms in tank production, artillery doctrine, and supply chains. Yet, these lessons were slow to implement, and in the short term, the primary benefit was the opportunity to consolidate efforts elsewhere. For Japan, "elsewhere" meant China, where the war had devolved into a grinding attrition since the fall of Wuhan in October 1938. The capture of Wuhan, a major transportation hub and temporary capital of the Nationalist government under Chiang Kai-shek, had been hailed as a turning point. Japanese forces, under the command of General Shunroku Hata, had pushed deep into central China, aiming to decapitate Chinese resistance. However, Chiang's strategic retreat to Chongqing transformed the conflict into a war of endurance. Nationalist forces, bolstered by guerrilla tactics and international aid, harassed Japanese supply lines and prevented a decisive knockout blow. By mid-1939, Japan controlled vast swaths of eastern and northern China, including key cities like Beijing, Shanghai, and Nanjing, but the cost was immense: stretched logistics, mounting casualties, and an inability to fully pacify occupied territories. The Nomonhan defeat exacerbated these issues by underscoring the limits of Japan's military overextension. With the northern threat abated, Tokyo's Army General Staff saw an opening to intensify operations in China, hoping to force Chiang to the negotiating table before global events further complicated the picture. The diplomatic fallout from Nomonhan and the Hitler-Stalin Pact further influenced this shift. Japan's betrayal by Germany, its nominal ally under the Anti-Comintern Pact—fostered distrust and isolation. Tokyo's flirtations with a full Axis alliance stalled, as the pact with Moscow revealed Hitler's willingness to prioritize European gains over Asian solidarity. This isolation prompted Japan to reassess its priorities, emphasizing self-reliance in China while eyeing opportunistic expansions elsewhere. Domestically, the Hiranuma cabinet collapsed in August 1939 amid the diplomatic shock, paving the way for the more cautious Abe Nobuyuki government. Abe's administration, though short-lived, signaled a temporary de-escalation in aggressive posturing, but the underlying imperative to resolve the "China Incident" persisted. Japanese strategists believed that capturing additional strategic points in central China could sever Chiang's lifelines, particularly the routes funneling aid from the Soviet Union and the West via Burma and Indochina. The seismic shifts triggered by Nomonhan compelled Japan to fundamentally readjust its China policy and war plans, marking a pivotal transition from overambitious northern dreams to a more focused, albeit desperate, campaign in the south. With the Kwantung Army's defeat fresh in mind, Tokyo's Imperial General Headquarters initiated a comprehensive strategic review in late August 1939. The once-dominant "Northern Advance" doctrine, which envisioned rapid conquests into Siberia for resources like oil and minerals, was officially shelved. In its place emerged a "Southern Advance" framework, prioritizing the consolidation of gains in China and potential expansions into Southeast Asia. This pivot was not merely tactical; it reflected a profound policy recalibration aimed at ending the quagmire in China, where two years of war had yielded territorial control but no decisive victory over Chiang Kai-shek's Nationalists. Central to this readjustment was a renewed emphasis on economic and military self-sufficiency. The Nomonhan debacle had exposed Japan's vulnerabilities in mechanized warfare, leading to urgent reforms in industrial production. Tank manufacturing was ramped up, with designs influenced by observed Soviet models, and artillery stockpiles were bolstered to match the firepower discrepancies seen on the Mongolian steppes. Logistically, the Army General Staff prioritized streamlining supply lines in China, recognizing that prolonged engagements demanded better resource allocation. Politically, the Abe Nobuyuki cabinet, installed in September 1939, adopted a "wait-and-see" approach toward Europe but aggressively pursued diplomatic maneuvers to isolate China. Efforts to negotiate with Wang Jingwei's puppet regime in Nanjing intensified, aiming to undermine Chiang's legitimacy and splinter Chinese resistance. Japan also pressured Vichy France for concessions in Indochina, seeking to choke off aid routes to Chongqing. War plans evolved accordingly, shifting from broad-front offensives to targeted strikes designed to disrupt Chinese command and supply networks. The China Expeditionary Army, under General Yasuji Okamura, was restructured to emphasize mobility and combined arms operations, drawing partial lessons from Zhukov's tactics. Intelligence operations were enhanced, with greater focus on infiltrating Nationalist strongholds in central provinces. By early September, plans coalesced around a major push into Hunan Province, a vital crossroads linking northern and southern China. Hunan's river systems and rail lines made it a linchpin for Chinese logistics, funneling men and materiel to the front lines. Japanese strategists identified key urban centers in the region as critical objectives, believing their capture could sever Chiang's western supply corridors and force a strategic retreat. This readjustment was not without internal friction. Hardliners in the military lamented the abandonment of northern ambitions, but the reality of Soviet strength—and the neutrality pacts that followed—left little room for debate. Economically, Japan ramped up exploitation of occupied Chinese territories, extracting coal, iron, and rice to fuel the war machine. Diplomatically, Tokyo sought to mend fences with the Soviets through the 1941 Neutrality Pact, ensuring northern security while eyes turned south. Yet, these changes brewed tension with the United States, whose embargoes on scrap metal and oil threatened to cripple Japan's ambitions. As autumn approached, the stage was set for a bold gambit in central China. Japanese divisions massed along the Yangtze River, poised to strike at the heart of Hunan's defenses. Intelligence reports hinted at Chinese preparations, with Xue Yue's forces fortifying positions around a major provincial hub. The air thickened with anticipation of a clash that could tip the balance in the interminable war—a test of Japan's revamped strategies against a resilient foe determined to hold the line. What unfolded would reveal whether Tokyo's post-Nomonhan pivot could deliver the breakthrough so desperately needed, or if it would merely prolong the bloody stalemate. I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me. In 1939, the Nomonhan Incident saw Soviet forces under Georgy Zhukov decisively defeat Japan's Kwantung Army at Khalkin Gol, exposing Japanese weaknesses in mechanized warfare. This setback, coupled with the Hitler-Stalin Nonaggression Pact, shattered Japan's northern expansion plans and prompted a strategic pivot southward. Diplomatic maneuvers involving Stalin, Hitler, Britain, France, and Japan reshaped alliances, leading to the Soviet-Japanese Neutrality Pact in 1941. Japan refocused on China, intensifying operations in Hunan Province to isolate Chiang Kai-shek.

3.191 Fall and Rise of China: Zhukov's Steel Ring of Fire at Nomonhan

Last time we spoke about General Zhukov's armor offensives at Nomohan. Following heavy Japanese losses in May and June, General Georgy Zhukov arrives in June, reorganizes the Soviet 1st Army Group, and bolsters it with tanks, artillery, and reinforcements. The July offensive sees General Komatsubara's forces cross the Halha River undetected, achieving initial surprise. However, General Yasuoka's tank assault falters due to muddy terrain, inadequate infantry support, and superior Soviet firepower, resulting in heavy losses. Japanese doctrine emphasizing spiritual superiority clashes with material realities, undermining morale as intelligence underestimates Soviet strength. Zhukov learns key lessons in armored warfare, adapting tactics despite high casualties. Reinforcements pour in via massive truck convoys. Japanese night attacks and artillery duels fail, exposing logistical weaknesses. Internal command tensions, including gekokujo defiance, hinder responses. By August, Stalin, buoyed by European diplomacy and Sorge's intel, greenlights a major offensive. Zhukov employs deception for surprise. Warnings of Soviet buildup are ignored, setting the stage for a climactic encirclement on August 20. #191 Zhukov Steel Ring of Fire at Nomohan Welcome to the Fall and Rise of China Podcast, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about the history of Asia? Kings and Generals have an assortment of episodes on history of asia and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel where I cover the history of China and Japan from the 19th century until the end of the Pacific War. On the night of August 19–20, under cover of darkness, the bulk of the Soviet 1st Army Group crossed the Halha River into the expanded Soviet enclave on the east bank. Two weeks of nightly Soviet sound effects had paid off: Japanese perimeter troops failed to distinguish the real deployment from the frequently heard simulations. Zhukov's order of battle was as follows: "Northern force, commanded by Colonel Alekseenko—6th Mongolian Cavalry Division, 601st Infantry Regiment (82nd Division), 7th Armored Brigade, 2 battalions of the 11th Tank Brigade, 82nd Artillery Regiment, and 87th Anti-tank Brigade. Central force, where Zhukov was located, commanded by his deputy, Colonel Petrov—36th Motorized Infantry Division, 82nd Infantry Division (less one regiment), 5th Infantry Machine Gun Brigade. Southern force, commanded by Colonel Potapov—8th Mongolian Cavalry Division, 57th Infantry Division, 8th Armored Brigade, 6th Tank Brigade, 11th Tank Brigade (less two battalions), 185th Artillery Regiment, 37th Anti-tank Brigade, one independent tank company. A mobile strategic reserve built around the 212th Airborne Regiment, the 9th Mechanized Brigade, and a battalion of the 6th Tank Brigade was held west of the Halha River." The Soviet offensive was supported by massed artillery, a hallmark of Zhukov's operations in the war against Germany. In addition to nearly 300 antitank and rapid-fire guns, Zhukov deployed over 200 field and heavy artillery pieces on both sides of the Halha. Specific artillery batteries were assigned to provide supporting fire for each attacking infantry and armored unit at the battalion level and higher. In the early hours of August 20, the sky began to lighten over the semiarid plain, with the false promise of a quiet Sunday morning. The air was clear as the sun warmed the ground that had been chilled overnight. General Komatsubara's troops were in no special state of readiness when the first wave of more than 200 Soviet bombers crossed the Halha River at 5:45 a.m. and began pounding their positions. When the bombers withdrew, a thunderous artillery barrage began, continuing for 2 hours and 45 minutes. That was precisely the time needed for the bombers to refuel, rearm, and return for a second run over the Japanese positions. Finally, all the Soviet artillery unleashed an intensive 15-minute barrage at the forwardmost Japanese positions. Komatsubara's men huddled in their trenches under the heaviest bombardment to which they or any other Japanese force had ever been subjected. The devastation, both physical and psychological, was tremendous, especially in the forward positions. The shock and vibration of incoming bombs and artillery rounds also caused their radiotelegraph keys to chatter so uncontrollably that frontline troops could not communicate with the rear, compounding their confusion and helplessness. At 9:00 a.m., Soviet armor and infantry began to move out along the line while their cover fire continued. A dense morning fog near the river helped conceal their approach, bringing them in some sectors to within small-arms range before they were sighted by the enemy. The surprise and disarray on the Japanese side was so complete, and their communications so badly disrupted, that Japanese artillery did not begin firing in support of their frontline troops until about 10:15 a.m. By then, many forward positions were overrun. Japanese resistance stiffened at many points by midday, and fierce combat raged along the front, roughly 40 miles long. In the day's fighting, Colonel M. I. Potapov's southern force achieved the most striking success. The 8th MPR Cavalry Division routed the Manchukuoan cavalry holding Komatsubara's southern flank, and Potapov's armor and mechanized infantry bent the entire southern segment of the Japanese front inward by about 8 miles in a northwesterly direction. Zhukov's central force advanced only 500–1,500 yards in the face of furious resistance, but the frontal assault engaged the center of the Japanese line so heavily that Komatsubara could not reinforce his flanks. Two MPR cavalry regiments and supporting armor and mechanized infantry from Colonel Ilya Alekseenko's northern force easily overran two Manchukuoan cavalry units guarding the northern flank of the Japanese line, about 2 miles north of the Fui Heights. But the heights themselves formed a natural strong point, and Alekseenko's advance was halted at what became the northern anchor of the Japanese line. As the first phase of the Soviet offensive gathered momentum, General Ogisu, the 6th Army's new commander, assessed the situation. Still unaware of Zhukov's strength, he reassured KwAHQ that "the enemy intends to envelop us from our flanks, but his offensive effectiveness is weak… Our positions in other areas are being strengthened. Set your mind at ease." This optimistic report contributed to Kwantung Army's delay in reinforcing the 23rd Division. Some at KwAHQ suspected this might be another limited Soviet push, like Aug 7–8, that would soon end. Others worried it was a diversion prior to a larger offensive and were concerned but not alarmed about Komatsubara's position. On Aug 21–22, Potapov's southern force pierced the Japanese main defense line at several points, breaking the southern sector into segments that the attackers sealed off, encircled, and ground down. Soviet armor, mechanized infantry, and artillery moved swiftly and with deadly efficiency. Survivors described how each pocket of resistance experienced its own hellish period. After the Japanese heavy weapons in a pocket were neutralized, Soviet artillery and tanks gradually tightened the ring, firing at point-blank range over open sights. Flame-throwing tanks incinerated hastily constructed fortifications and underground shelters. Infantry mopped up with grenades, small arms, and bayonets. By the end of Aug 23, Potapov had dismembered the entire Japanese defensive position south of the Holsten River. Only one significant pocket of resistance remained. Meanwhile, Potapov's 8th Armored Brigade looped behind the Japanese, reaching southeast of Nomonhan, some 11 miles east of the river junction, on the boundary claimed by the MPR, and took up a blocking position there athwart the most likely line of retreat for Japanese units south of the Holsten. In those two days, the Japanese center yielded only a few yards, while the northern flank anchored at Fui Heights held firm. Air combat raged over the battlefield. Soviet air units provided tactical support for their armor and infantry, while Kwantung Army's 2nd Air Group strove to thwart that effort and hit the Soviet ground forces. Before Nomonhan, the Japanese air force had not faced a modern opponent. Japanese fliers had roamed largely unchallenged in Manchuria and China from 1931 to 1939. At Nomonhan, the Soviets enjoyed an advantage of roughly 2:1 in aircraft and pilots. This placed an increasingly heavy burden on Japanese air squadrons, which had to fly incessantly, often against heavy odds. Fatigue took its toll and losses mounted. Soviet and Japanese accounts give wildly different tallies of air victories and losses, but an official Japanese assessment after the battle stated, "Nomonhan brought out the bitter truths of the phenomenal rate at which war potential is sapped in the face of superior opposition." As with tank combat, the Soviet air superiority was qualitative as well as quantitative. In June–early July, the Soviet I-16 fighters did not fare well against the Japanese Type 97 fighter. However, in the lull before the August offensive, the Soviets introduced an improved I-16 with armor-plated fuselage and windshield, making it virtually impervious to the Type 97's light 7.7-mm guns. The Japanese countered by arming some planes with heavier 12.7-mm guns, which were somewhat more effective against the new I-16s. But the Soviet pilots discovered that the Type-97's unprotected fuel tank was an easy mark, and Japanese planes began to burn with horrendous regularity. On Aug 23, as Ribbentrop arrived in Moscow to seal the pact that would doom Poland and unleash war in Europe, the situation at Nomonhan was deemed serious enough by Kwantung Army to transfer the 7th Division to Hailar for support. Tsuji volunteered to fly to Nomonhan for a firsthand assessment. This move came too late, as Aug 23–24 proved the crucial phase of the battle. On Tue night, Aug 22, at Japanese 6th Army HQ, General Ogisu ordered a counterattack to push back the Soviet forces enveloping and crushing the Japanese southern flank. Komatsubara planned the counterattack in minute detail and entrusted its execution to his 71st and 72nd Regiments, led by General Kobayashi Koichi, and the 26th and 28th Regiments of the 7th Division, commanded by General Morita Norimasa. On paper this force looked like two infantry brigades. Only the 28th Regiment, however, was near full strength, though its troops were tired after marching about 25 miles to the front the day before. This regiment's peerless commander was Colonel Morita Toru (unrelated to General Morita). The chief kendo fencing master of the Imperial Army, Morita claimed to be invulnerable to bullets. The other three regiments were seriously understrength, partly due to combat attrition and partly because several of their battalions were deployed elsewhere on the front. The forces Kobayashi and Morita commanded that day totaled less than one regiment each. It was not until the night of Aug 23 that deployment and attack orders filtered down to the Japanese regiment, battalion, and company commanders. Due to insufficient truck transport and the trackless terrain, units were delayed reaching their assigned positions in the early morning of Aug 24, and some did not arrive at all. Two battalions of the 71st Regiment did not reach Kobayashi in time; his attack force that morning consisted of two battalions of the 72nd Regiment. Colonel Sumi's depleted 26th Regiment did not arrive in time, and General Morita's assault force consisted of two battalions of the 28th Regiment and a battalion-equivalent independent garrison unit newly arrived at the front. Because of these delays, the Japanese could not reconnoiter enemy positions adequately before the attack. What had been planned as a dawn assault would begin between 9:30 and 10:00 a.m. in broad daylight. The light plane carrying Tsuji on the final leg of his flight from Hsinking-Hailar-Nomonhan was attacked by Soviet fighters and forced to land behind the 72nd Regiment's staging area. Tsuji managed to reach General Kobayashi's command post by truck and on foot, placing him closer to the fighting than he anticipated. Just before the counterattack began, a dense fog drifted across part of the battlefield, obscuring visibility and limiting artillery effectiveness. Using the fog to mask their movement, lead elements of the 72nd Regiment moved toward a distant stand of scrub pines. As they approached, the trees began to move away—the stand was a well-camouflaged Soviet tank force. The tanks then maneuvered to the south, jeopardizing further Japanese advance. As the fog cleared, the Japanese found themselves facing a much larger enemy force. A vastly heavier Soviet barrage answered their renewed artillery fire. Kobayashi and Morita discovered too late that their counterattack had walked into the teeth of far stronger Soviet forces. One account calls it "The Charge of Two Light Brigades." Kobayashi's 72nd Regiment encountered the Soviet T-34, with its thick sloped armor and 76-mm gun—the most powerful tank in 1939. In addition, the improved Soviet BT-5/7 tanks, powered by diesel, were less prone to ignition. On gasoline-powered vehicles, the Soviets added wire netting over the ventilation grill and exhaust manifold, reducing the effectiveness of hand-thrown gasoline bombs. Japanese infantry regiments suffered near 50% casualties that day. Nearly every battalion and company commander was lost. Kobayashi was gravely wounded by a tank shell fragment and nearly trampled by fleeing troops. He survived the battle and the Pacific War but died in a Soviet POW camp in 1950. Morita's 28th Regiment fared little better. It was pinned down about 500 yards from the Soviet front lines by intense artillery. Unable to advance and not permitted to retreat, Morita's men dug into the loose sand and withstood the bombardment, but were cut to pieces. Shortly after sunset, the remnants were ordered to withdraw, but both regiments were shattered. Tsuji, a survivor, rejoined Komatsubara at his command post. Upon receiving combat reports from the 72nd and 28th Regiments, General Komatsubara "evinced deep anxiety." 6th Army chief of staff Major General Fujimoto Tetsukuma, at Komatsubara's command post, "appeared bewildered," and announced he was returning to headquarters, asking if Tsuji would accompany him. The major declined and later recalled that he and Komatsubara could barely conceal their astonishment at Fujimoto's abrupt departure at such a time. Meanwhile, at the northern end of the line, Colonel Alekseenko's force had been hammering at Fui Heights for 3 days without success. The position was held by about 800 defenders under Lieutenant Colonel Ioki Eiichiro, consisting of two infantry companies; one company each of cavalry, armored reconnaissance, and combat engineers; and three artillery batteries (37-mm and 75-mm guns). The defenders clung tenaciously to the strongpoint created by the heights and their bunkers, inflicting heavy losses on Alekseenko's force. The unexpectedly strong defense disrupted the timing of the entire Soviet offensive. By Aug 23, Zhukov was exasperated and losing patience with the pace in the north. Some of Zhukov's comrades recall a personable chief who played the accordion and urged singing during happier times. Under stress, his harshness and temper surfaced. Zhukov summoned Alekseenko to the telephone. When the northern commander expressed doubt about storming the heights immediately, Zhukov berated him, relieved him on the spot, and entrusted the attack to Alekseenko's chief of staff. After a few hours, Zhukov called again and, finding that the new commander was slow, fired him as well and sent a staff member to take charge. Accounts record that his tirades sometimes included the phrase "useless bag of shit," though others note harsher language was used toward generals who did not meet expectations. That night, reinforced by the 212th Airborne Regiment, heavier artillery, and a detachment of flame-throwing tanks, the northern force renewed its assault on Fui Heights. The battered Japanese defenders were thoroughly overmatched. Soviet artillery fired at two rounds per second. When the last Japanese artillery was knocked out, they no longer could defend against flame-throwing tanks. From several miles away, Colonel Sumi could see the heights shrouded in black smoke and red flames "spitting like the tongues of snakes." After Aug 22, supply trucks could no longer reach Fui Heights. The next afternoon, Colonel Ioki's radio—the last link to the 23rd Division—was destroyed. His surviving men fought on with small arms and grenades, repelling Soviet infantry with bayonet charges that night. By the morning of Aug 24, Ioki had about 200 able-bodied men left of his original 800. Soviet tanks and infantry had penetrated defenses at several points, forcing him to constrict his perimeter. Red flags flew on the eastern edge of the heights. Ioki gathered his remaining officers to discuss last measures. With little ammunition and almost no food or water, their situation seemed hopeless. But Ioki insisted on holding Fui Heights to the last man, arguing that the defense should not be abandoned and that orders to break out should come only with reinforcements and supplies. Some subordinates urged retreat. Faced with two dire options, Ioki drew his pistol and attempted suicide, but a fellow officer restrained him. Rather than see his men blown to bits, Ioki decided to abandon Fui Heights and retreat east. Those unable to walk received hand grenades with the injunction to blow themselves up rather than be captured. On the night of Aug 24–25, after moonrise, the remaining resistance at the heights was quelled, and Soviet attention shifted south. Ioki's battered remnant slipped out and, the next morning, encountered a Manchukuoan cavalry patrol that summoned trucks to take them to Chaingchunmiao, forty miles away. Russians occupying Fui Heights on Aug 25 counted the corpses of over 600 Japanese officers and men. After securing Fui Heights, the Soviet northern force began to roll up the Japanese northern flank in a wide arc toward Nomonhan. A day after the fall of Fui Heights, elements of the northern force's 11th Tank Brigade linked up with the southern force's 8th Armored Brigade near Nomonhan. A steel ring had been forged around the Japanese 6th Army. As the Japanese northern and southern flanks dissolved under Zhukov's relentless assaults, Komatsubara's command ceased to exist as an integrated force. By Aug 25 the Japanese lines were completely cut, with resistance remaining only in three encircled pockets. The remnants of two battalions of General Morita's "brigade" attempted a renewed offensive on Aug 25, advancing about 150 yards before being hammered by Soviet artillery and tanks, suffering heavier casualties than the day before. The only hope for the surrounded Japanese troops lay in a relief force breaking through the Soviet encirclement from the outside. However, Kwantung Army was spread thin in Manchuria and, due to a truck shortage, could not transport the 7th Division from Hailar to the combat zone in time. By Aug 26 the encirclement had thickened, with three main pockets tightly invested, making a large-scale breakout nearly impossible. Potapov unleashed a two-pronged assault with his 6th Tank Brigade and 80th Infantry Regiment. Japanese artillery from the 28th Regiment temporarily checked the left wing of the armored attack, but the Soviet right wing overran elements of Sumi's 26th Regiment, forcing the Japanese to retreat into a tighter enclave. Morita, the fencing-master commander who claimed to be immune to bullets, was killed by machine-gun fire while standing atop a trench encouraging his men. The Japanese 120-mm howitzers overheated under the August sun; their breech mechanisms swelled and refused to eject spent casings. Gunners had to leap from behind shelter to ram wooden rods down the barrels, drastically reducing rate of fire and life expectancy. Komatsubara's artillery units suffered a bitter fate. Most were deployed well behind the front lines with their guns facing west toward the Halha. As the offensive developed, attackers often struck the batteries from the east, behind them. Even when crews could turn some guns to face east, they had not preregistered fields of fire there and were not very effective. Supporting infantry had already been drawn off for counterattacks and perimeter defense. One by one, Japanese batteries were smashed by Soviet artillery and tanks. Crews were expected to defend their guns to the last man; the guns themselves were treated as the unit's soul, to be destroyed if captured. In extremis, crews were to destroy sensitive parts like optics. Few survived. Among those who did was a PFC from an annihilated howitzer unit, ordered to drive one of the few surviving vehicles, a Dodge sedan loaded with seriously wounded men, eastward to safety during the night. Near a Holsten River bridge he encountered Soviet sentries. The driver hesitated, then honked his horn, and the guards saluted as the sedan sped past. With water supplies exhausted and unable to reach the Halha or Holsten Rivers, the commander of the easternmost enclave ordered his men to drain radiator water from their vehicles. Drinking the foul liquid, at the cost of immobilizing their remaining transport, signaled that the defenders believed their situation was hopeless. On Aug 27 the rest of the Japanese 7th Division, two fresh infantry regiments, an artillery regiment, and support units totaling barely 5,000 men—reached the northeastern segment of the ring around Komatsubara. One day of hard fighting revealed they lacked the strength to break the encirclement. General Ogisu ordered the 7th Division to pull back and redeploy near his own 6th Army headquarters, about 4 miles east of Nomonhan and the border claimed by the enemy. There would be no outside relief for Komatsubara's forces. Throughout Aug 27–28, Soviet aircraft, artillery, armor, and infantry pounded the three Japanese pockets, compressing them into ever-smaller pockets and grinding them down. The surrounded Japanese fought fiercely and inflicted heavy casualties, but the outcome was inevitable. After the remaining Japanese artillery batteries were silenced, Soviet tanks ruled the battlefield. One by one, major pockets were overrun. Some smaller groups managed to slip through Soviet lines and reach safety east of the border claimed by the MPR, where they were left unmolested by the Red Army. Elements of Potapov's 57th and 82nd Divisions eliminated the last remnants of resistance south of the Holsten by the evening of Aug 27. North of the Holsten, during the night of Aug 28–29, a group of about 400 Japanese tried to slip east through the Soviet lines along the riverbank. They were spotted by the 293rd Regiment (57th Division), which struck them. The fleeing Japanese refused to surrender and were wiped out attempting to recross the Holsten. Japanese soldiers' refusal to surrender is well documented. Surrender was considered dishonorable; the Army Field Manual was silent on surrender. For officers, death was not merely preferable to surrender; it was expected, and in some cases required. The penal code (1908, not revised until 1942) stated that surrender was dereliction of duty; if a commander did his best to resist, imprisonment could follow; if not, death. Stemming from Bushido, regimental colors were treated as sacred. On the afternoon of Aug 28, with much of his 64th Regiment destroyed, Colonel Yamagata saw no alternative but to burn the regimental colors and then commit suicide. Part of the flagpole had been shattered; the chrysanthemum crest damaged. Yamagata, Colonel Ise (artillery regimental commander), an infantry captain, a medical lieutenant, and a foot soldier—the last survivors of the headquarters unit—faced east, shouted "banzai" for the emperor, drenched the pennant in gasoline, and lit it. Yamagata, Ise, and the captain then shot themselves. The flag and crest were not entirely consumed, and the unburned remnants were buried beneath Yamagata's unmarked body. The medical officer and the soldier escaped and reported these rites to 6th Army HQ, where the deaths of the two colonels were mourned, but there was concern over whether the regimental colors had been entirely destroyed. On Aug 29, Lieutenant Colonel Higashi Muneharu, who had taken command of the 71st Regiment, faced the same dilemma. The regimental standard was broken into four pieces and, with the flag and chrysanthemum crest, drenched with fuel and set on fire. The fire kept going out, and the tassels were especially hard to burn. It took 45 minutes to finish the job, all under enemy fire. Afterward, Higashi urged all able to join him in a suicide charge, and the severely wounded to "kill themselves bravely when the enemy approached." Soviet machine-gun fire and grenades felled Higashi and his followers within moments. When it became clear on Aug 29 that all hope was lost, Komatsubara resolved to share the fate of his 23rd Division. He prepared to commit suicide, entrusted his will to his aide, removed his epaulets, and burned his code books. General Ogisu ordered Komatsubara to save himself and lead as many of his men as possible out of the encirclement. Shortly before midnight on Aug 30, the bulk of the Soviet armor briefly pulled back to refuel and resupply. Some of the Soviet infantry also pulled back. Komatsubara and about 400 survivors of his command used the opportunity to slip through the Soviet lines, guiding wounded by starlight to safety at Chiangchunmiao on the morning of Aug 31. Tsuji was among the survivors. In transit, Komatsubara was so distraught he needed to be restrained from taking his own life. A fellow officer took his pistol, and two sturdy corporals helped to support him, preventing him from drawing his sword. On August 31, Zhukov declared the disputed territory between the Halha River and the boundary line through Nomonhan cleared of enemy troops. The Sixth Army had been annihilated, with between 18,000 and 23,000 men killed or wounded from May to September (not counting Manchukuoan losses). The casualty rate in Komatsubara's 23rd Division reached 76%, and Sumi's 26th Regiment (7th Division) suffered 91% casualties. Kwantung Army lost many of its tanks and heavy guns and nearly 150 aircraft. It was the worst military defeat in modern Japanese history up to that time. Soviet claims later put total Japanese casualties at over 50,000, though this figure is widely regarded as inflated. For years, Soviet-MPR authorities claimed 9,284 casualties, surely an underestimate. A detailed unit-by-unit accounting published in Moscow in 2002 put Soviet losses at 25,655 (9,703 killed, 15,952 wounded), plus 556 MPR casualties. While Soviet casualties may have exceeded Japanese losses, this reflects the fierceness of Japanese defense and questions Zhukov's expenditutre of blood. There was no denying, however, that the Red Army demonstrated substantial strength and that Kwantung Army suffered a serious defeat. Knowledgeable Japanese and Soviet sources agree that given the annihilation of Komatsubara's forces and the dominance of Soviet air power, if Zhukov had pressed beyond Nomonhan toward Hailar, local Japanese forces would have fallen into chaos, Hailar would have fallen, and western Manchuria would have been gravely threatened. But while that might have been militarily possible, Moscow did not intend it. Zhukov's First Army Group halted at the boundary line claimed by the MPR. A Japanese military historian notes that "Kwantung Army completely lost its head." KwAHQ was enraged by the battlefield developments. Beyond the mauling of the Sixth Army at Nomonhan, there was anxiety over regimental colors. It was feared that Colonel Yamagata might not have had time to destroy the imperial crest of the 64th Regiment's colors, which could have fallen into Soviet hands. Thousands of dead and wounded littered the field. To preserve "face" and regain leverage, a swift, decisive counterstroke was deemed necessary. At Hsinking, they decided on an all-out war against the USSR. They planned to throw the 7th, 2nd, 4th, and 8th Divisions into the Sixth Army, along with all heavy artillery in Manchukuo, to crush the enemy. Acknowledging shortages in armor, artillery, and air power, they drafted a plan for a series of successive night offenses beginning on September 10. This was viewed as ill-advised for several reasons: September 10 was an unrealistic target given Kwantung Army's limited logistical capacity; it was unclear what the Red Army would be doing by day, given its superiority in tanks, artillery, and air power; autumn would bring extreme cold that could immobilize forces; and Germany's alliance with the Soviet Union isolated Japan diplomatically. These factors were known at KwAHQ, yet the plan proceeded. Kwantung Army notified AGS to "utilize the winter months well," aiming to mobilize the entire Japanese Army for a decisive spring confrontation. However, the Nomonhan defeat coincided with the Hitler-Stalin pact's diplomatic fallout. The push for close military cooperation with Germany against the Soviet Union was discredited in a single week. Defeated and abandoned by Hitler, pro-German, anti-Soviet policy advocates in Tokyo were furious. Premier Hiranuma Kiichiro's government resigned on August 28. In response, more cautious voices in Tokyo asserted control. General Nakajima, deputy chief of AGS, went to Hsinking with Imperial Order 343, directing Kwantung Army to hold near the disputed frontier with "minimal strength" to enable a quick end to hostilities and a diplomatic settlement. But at KwAHQ, the staff pressed their case, and Nakajima eventually approved a general offensive to begin on September 10. The mood at KwAHQ was ebullient. Upon returning to Tokyo, Nakajima was sternly rebuked and ordered to stand down. General Ueda appealed to higher authority, requesting permission to clear the battlefield and recover the bodies of fallen soldiers. He was denied and later relieved of command on September 6. A reshuffle followed at KwAHQ, with several senior officers reassigned. The Japanese Foreign Ministry directed Ambassador Togo Shigenori to negotiate a settlement in Moscow. The Molotov-Togo agreement was reached on September 15–16, establishing a temporary frontier and a commission to redemarcate the boundary. The local cease-fire arrangements were formalized on September 18–19, and both sides agreed to exchange prisoners and corpses. In the aftermath, Kwantung Army leadership and the Red Army leadership maintained tight control over communications about the conflict. News of the defeat spread through Manchuria and Japan, but the scale of the battle was not fully suppressed. The Kwantung Army's reputation suffered further from subsequent punishments of officers deemed to have mishandled the Nomonhan engagement. Several officers were compelled to retire or commit suicide under pressure, and Ioki's fate became a particular symbol of the army's dishonor and the heavy costs of the campaign. I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me. In August 1939, Soviet General Georgy Zhukov launched a decisive offensive against Japanese forces at Nomonhan. Under cover of darkness, Soviet troops crossed the Halha River, unleashing massive air and artillery barrages on August 20. Fierce fighting ensued, with failed Japanese counterattacks, the fall of Fui Heights, and annihilation of encircled pockets by Soviet tanks and infantry.

3.190 Fall and Rise of China: Zhukov Unleashes Tanks at Nomonhan

Last time we spoke about General Zhukov's arrival to the Nomohan incident. The Kwantung Army's inexperienced 23rd Division, under General Komatsubara, suffered heavy losses in failed offensives, including Colonel Yamagata's assault and the annihilation of Lieutenant Colonel Azuma's detachment, resulting in around 500 Japanese casualties. Tensions within the Japanese command intensified as Kwantung defied Tokyo's restraint, issuing aggressive orders like 1488 and launching a June 27 air raid on Soviet bases, destroying dozens of aircraft and securing temporary air superiority. This provoked Moscow's fury and rebukes from Emperor Hirohito. On June 1, Georgy Zhukov, a rising Red Army tactician and tank expert, was summoned from Minsk. Arriving June 5, he assessed the 57th Corps as inadequate, relieved Commander Feklenko, and took charge of the redesignated 1st Army Group. Reinforcements included mechanized brigades, tanks, and aircraft. Japanese intelligence misread Soviet supply convoys as retreats, underestimating Zhukov's 12,500 troops against their 15,000. By July, both sides poised for a massive clash, fueled by miscalculations and gekokujo defiance. #190 Zhukov Unleashes Tanks at Nomohan Welcome to the Fall and Rise of China Podcast, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about the history of Asia? Kings and Generals have an assortment of episodes on history of asia and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel where I cover the history of China and Japan from the 19th century until the end of the Pacific War. At 4:00 a.m. on July 1, 15,000 heavily laden Japanese troops began marching to their final assembly and jump-off points. The sun rose at 4:00 a.m. and set at 9:00 p.m. that day, but the Japanese advance went undetected by Soviet/MPR commanders, partly because the June 27 air raid had temporarily cleared Soviet reconnaissance from the skies. On the night of July 1, Komatsubara launched the first phase. The 23rd Division, with the Yasuoka Detachment, converged on Fui Heights, east of the Halha River, about eleven miles north of its confluence with the Holsten. The term "heights" is misleading here; a Japanese infantry colonel described Fui as a "raised pancake" roughly one to one-and-a-half miles across, about thirty to forty feet higher than the surrounding terrain. For reasons not fully explained, the small Soviet force stationed on the heights was withdrawn during the day on July 1, and that night Fui Heights was occupied by Komatsubara's forces almost unopposed. This caused little stir at Zhukov's headquarters. Komatsubara bided his time on July 2. On the night of July 2–3, the Japanese achieved a brilliant tactical success. A battalion of the 71st Infantry Regiment silently crossed the Halha River on a moonless night and landed unopposed on the west bank opposite Fui Heights. Recent rains had swollen the river to 100–150 yards wide and six feet deep, making crossing difficult for men, horses, or vehicles. Combat engineers swiftly laid a pontoon bridge, completing it by 6:30 a.m. on July 3. The main body of Komatsubara's 71st and 72nd Infantry Regiments (23rd Division) and the 26th Regiment (7th Division) began a slow, arduous crossing. The pontoon bridge, less than eight feet wide, was a bottleneck, allowing only one truck at a time. The attackers could not cross with armored vehicles, but they did bring across their regimental artillery, 18 x 37-mm antitank guns, 12 x 75-mm mountain guns, 8 x 75-mm field guns, and 4 x 120-mm howitzers, disassembled, packed on pack animals, and reassembled on the west bank. The crossing took the entire day, and the Japanese were fortunate to go without interception. The Halha crossing was commanded personally by General Komatsubara and was supported by a small Kwantung Army contingent, including General Yano (deputy chief of staff), Colonel Hattori, and Major Tsuji from the Operations Section. Despite the big air raid having alerted Zhukov, the initial Japanese moves from July 1–3 achieved complete tactical surprise, aided by Tsuji's bold plan. The first indication of the major offensive came when General Yasuoka's tanks attacked predawn on July 3. Yasuoka suspected Soviet troops south of him attempting to retreat across the Halha to the west bank, and he ordered his tanks to attack immediately, with infantry not yet in position. The night's low clouds, no moon, and low visibility—along with a passing thunderstorm lighting the sky—made the scene dramatic. Seventy Japanese tanks roared forward, supported by infantry and artillery, and the Soviet 149th Infantry Regiment found itself overwhelmed. Zhukov, hearing of Yasuoka's assault but unaware that Komatsubara had crossed the Halha, ordered his armor to move northeast to Bain Tsagan to confront the initiative. There, Soviet armor clashed with Japanese forces in a chaotic, largely uncoordinated engagement. The Soviet counterattacks, supported by heavy artillery, halted much of the Japanese momentum, and by late afternoon Japanese infantry had to dig in west of the Halha. The crossing had been accomplished without Soviet reconnaissance detecting it in time, but Zhukov's counterattacks, the limits of Japanese armored mobility across the pontoon, and the heat and exhaustion of the troops constrained the Japanese effort. By the afternoon of July 3, Zhukov's forces were pressing hard, and the Japanese momentum began to stall. Yasuoka's tanks, supported by a lack of infantry and the fatigue and losses suffered by the infantry, could not close the gap to link with Komatsubara's forces. The Type 89 tanks, designed for infantry support, were ill-suited to penetrating Soviet armor, especially when faced with BT-5/BT-7 tanks and strong anti-tank guns. The Type 95 light tanks were faster but lightly armored, and suffered heavily from Soviet fire and air attacks. Infantry on the western bank struggled to catch up with tanks, shot through by Soviet artillery and armor, while the 64th Regiment could not keep pace with the tanks due to the infantry's lack of motorized transport. By late afternoon, Yasuoka's advance stalled far short of the river junction and the Soviet bridge. The infantry dug in to withstand Soviet bombardment, and the Japanese tank regiments withdrew to their jump-off points by nightfall. The Japanese suffered heavy losses in tanks, though some were recovered and repaired; by July 9, KwAHQ decided to withdraw its two tank regiments from the theater. Armor would play no further role in the Nomonhan conflict. The Soviets, by contrast, sustained heavier tank losses but began to replenish with new models. The July offensive, for Kwantung Army, proved a failure. Part of the failure stemmed from a difficult blend of terrain and logistics. Unusually heavy rains in late June had transformed the dirt roads between Hailar and Nomonhan into a mud-filled quagmire. Japanese truck transport, already limited, was so hampered by these conditions that combat effectiveness suffered significantly. Colonel Yamagata's 64th Infantry Regiment, proceeding on foot, could not keep pace with or support General Yasuoka's tanks on July 3–4. Komatsubara's infantry on the west bank of the Halha ran short of ammunition, food, and water. As in the May 28 battle, the main cause of the Kwantung Army's July offensive failure was wholly inadequate military intelligence. Once again, the enemy's strength had been seriously underestimated. Moreover, a troubling realization was dawning at KwAHQ and in the field: the intelligence error was not merely quantitative but qualitative. The Soviets were not only more numerous but also far more potent than anticipated. The attacking Japanese forces initially held a slight numerical edge and enjoyed tactical surprise, but the Red Army fought tenaciously, and the weight of Soviet firepower proved decisive. Japan, hampered by a relative lack of raw materials and industrial capacity, could not match the great powers in the quantitative production of military materiel. Consequently, Japanese military leaders traditionally emphasized the spiritual superiority of Japan's armed forces in doctrine and training, often underestimating the importance of material factors, including firepower. This was especially true of the army that had carried the tactic of the massed bayonet charge into World War II. This "spiritual" combat doctrine arose from necessity; admitting material superiority would have implied defeat. Japan's earlier victories in the Sino-Japanese War, Russo-Japanese War, the Manchurian incident, and the China War, along with legendary medieval victories over the Mongol hordes, seemed to confirm the transcendent importance of fighting spirit. Only within such a doctrine could the Imperial Japanese Army muster inner strength and confidence to face formidable enemies. This was especially evident against Soviet Russia, whose vast geography, population, and resources loomed large. Yet what of its spirit? The Japanese military dismissed Bolshevism as a base, materialist philosophy utterly lacking spiritual power. Consequently, the Red Army was presumed to have low morale and weak fighting effectiveness. Stalin's purges only reinforced this belief. Kwantung Army's recent experiences at Nomonhan undermined this outlook. Among ordinary soldiers and officers alike, from the 23rd Division Staff to KwAHQ—grim questions formed: Had Soviet materiel and firepower proven superior to Japanese fighting spirit? If not, did the enemy possess a fighting spirit comparable to their own? To some in Kwantung Army, these questions were grotesque and almost unthinkable. To others, the implications were too painful to face. Perhaps May and July's combat results were an aberration caused by the 23rd Division's inexperience. Nevertheless, a belief took hold at KwAHQ that this situation required radical rectification. Zhukov's 1st Army Headquarters, evaluating recent events, was not immune to self-criticism and concern for the future. The enemy's success in transporting nearly 10,000 men across the Halha without detection—despite heightened Soviet alert after the June 27 air raid—revealed a level of carelessness and lack of foresight at Zhukov's level. Zhukov, however, did not fully capitalize on Komatsubara's precarious position on July 4–5. Conversely, Zhukov and his troops reacted calmly in the crisis's early hours. Although surprised and outnumbered, Zhukov immediately recognized that "our trump cards were the armored detachments, and we decided to use them immediately." He acted decisively, and the rapid deployment of armor proved pivotal. Some criticized the uncoordinated and clumsy Soviet assault on Komatsubara's infantry on July 3, but the Japanese were only a few hours' march from the river junction and the Soviet bridge. By hurling tanks at Komatsubara's advance with insufficient infantry support, Mikhail Yakovlev (11th Tank Brigade) and A. L. Lesovoi (7th Mechanized Brigade) incurred heavy losses. Nonetheless, they halted the Japanese southward advance, forcing Komatsubara onto the defensive, from which he never regained momentum. Zhukov did not flinch from heavy casualties to achieve his objectives. He later told General Dwight D. Eisenhower that if the enemy faced a minefield, their infantry attacked as if it did not exist, treating personnel mine losses as equal to those that would have occurred if the Germans defended the area with strong troops rather than minefields. Zhukov admitted losing 120 tanks and armored cars that day—a high price, but necessary to avert defeat. Years later, Zhukov defended his Nomonhan tactics, arguing he knew his armor would suffer heavy losses, but that was the only way to prevent the Japanese from seizing the bridge at the river confluence. Had Komatsubara's forces advanced unchecked for another two or three hours, they might have fought through to the Soviet bridge and linked with the Yasuoka detachment, endangering Zhukov's forces. Zhukov credited Yakovlev, Lesovoi, and their men with stabilizing the crisis through timely and self-sacrificing counterattacks. The armored car battalion of the 8th MPR Cavalry Division also distinguished itself in this action. Zhukov and his tankmen learned valuable lessons in those two days of brutal combat. A key takeaway was the successful use of large tank formations as an independent primary attack force, contrary to then-orthodox doctrine, which saw armor mainly as infantry support and favored integrating armor into every infantry regiment rather than maintaining large, autonomous armored units. The German blitzkrieg demonstrations in Poland and Western Europe soon followed, but, until then, few major armies had absorbed the tank-warfare theories championed by Basil Liddell-Hart and Charles de Gaulle. The Soviet high command's leading proponent of large-scale tank warfare had been Marshal Mikhail Tukhachevsky. His execution in 1937 erased those ideas, and the Red Army subsequently disbanded armored divisions and dispersed tanks among infantry, misapplying battlefield lessons from the Spanish Civil War. Yet Zhukov was learning a different lesson on a different battlefield. The open terrain of eastern Mongolia favored tanks, and Zhukov was a rapid learner. The Russians also learned mundane, but crucial, lessons: Japanese infantry bravely clambering onto their vehicles taught Soviet tank crews to lock hatch lids from the inside. The BT-5 and BT-7 tanks were easily set aflame by primitive hand-thrown firebombs, and rear deck ventilation grills and exhaust manifolds were vulnerable and required shielding. Broadly, the battle suggested to future Red Army commander Zhukov that tank and motorized troops, coordinated with air power and mobile artillery, could decisively conduct rapid operations. Zhukov was not the first to envision combining mobile firepower with air and artillery, but he had rare opportunities to apply this formula in crucial tests. The July offensive confirmed to the Soviets that the Nomonhan incident was far from a border skirmish; it signaled intent for further aggression. Moscow's leadership, informed by Richard Sorge's Tokyo network, perceived Japan's renewed effort to draw Germany into an anti-Soviet alliance as a dangerous possibility. Stalin and Vyacheslav Molotov began indicating to Joachim von Ribbentrop and Adolf Hitler that Berlin's stance on the Soviet–Japanese conflict would influence Soviet-German rapprochement considerations. Meanwhile, Moscow decided to reinforce Zhukov. Tens of thousands of troops and machines were ordered to Mongolia, with imports from European Russia. Foreign diplomats traveling the Trans-Siberian Railway reported eastbound trains jammed with personnel and matériel. The buildup faced a major bottleneck at Borzya, the easternmost railhead in the MPR, about 400 miles from the Halha. To prevent a logistics choke, a massive truck transport operation was needed. Thousands of trucks, half-tracks, gun-towing tractors, and other vehicles were organized into a continuous eight-hundred-mile, five-day shuttle run. The Trans-Baikal Military District, under General Shtern, supervised the effort. East of the Halha, many Japanese officers still refused to accept a failure verdict for the July offensive. General Komatsubara did not return to Hailar, instead establishing a temporary divisional HQ at Kanchuerhmiao, where his staff grappled with overcoming Soviet firepower. They concluded that night combat—long a staple of Japanese infantry tactics—could offset Soviet advantages. On July 7 at 9:30 p.m., a thirty-minute Japanese artillery barrage preceded a nighttime assault by elements of the 64th and 72nd Regiments. The Soviet 149th Infantry Regiment and supporting Mongolian cavalry were surprised and forced to fall back toward the Halha before counterattacking. Reinforcements arrived on both sides, and in brutal close-quarters combat the Japanese gained a partial local advantage, but were eventually pushed back; Major I. M. Remizov of the 149th Regiment was killed and later posthumously named a Hero of the Soviet Union. Since late May, Soviet engineers had built at least seven bridges across the Halha and Holsten Rivers to support operations. By July 7–8, Japanese demolition teams destroyed two Soviet bridges. Komatsubara believed that destroying bridges could disrupt Soviet operations east of the Halha and help secure the border. Night attacks continued from July 8 to July 12 against the Soviet perimeter, with Japanese assaults constricting Zhukov's bridgehead while Soviet artillery and counterattacks relentlessly pressed. Casualties mounted on both sides. The Japanese suffered heavy losses but gained some positions; Soviet artillery, supported by motorized infantry and armor, gradually pushed back the attackers. The biggest problem for Japan remained Soviet artillery superiority and the lack of a commensurate counter-battery capability. Japanese infantry had to withdraw to higher ground at night to avoid daytime exposure to artillery and tanks. On the nights of July 11–12, Yamagata's 64th Regiment and elements of Colonel Sakai Mikio's 72nd Regiment attempted a major assault on the Soviet bridgehead. Despite taking heavy casualties, the Japanese managed to push defenders back to the river on occasion, but Soviet counterattacks, supported by tiresome artillery and armor, prevented a decisive breakthrough. Brigade Commander Yakovlev of the 11th Armored, who led several counterattacks, was killed and later honored as a Hero of the Soviet Union; his gun stands today as a monument at the battlefield. The July 11–12 action marked the high-water mark of the Kwantung Army's attempt to expel Soviet/MPR forces east of the Halha. Komatsubara eventually suspended the costly night attacks; by that night, the 64th Regiment had suffered roughly 80–90 killed and about three times that number wounded. The decision proved controversial, with some arguing that he had not realized how close his forces had come to seizing the bridge. Others argued that broader strategic considerations justified the pause. Throughout the Nomonhan fighting, Soviet artillery superiority, both quantitative and qualitative, became painfully evident. The Soviet guns exacted heavy tolls and repeatedly forced Japanese infantry to withdraw from exposed positions. The Japanese artillery, in contrast, could not match the Red Army's scale. By July 25, Kwantung Army ended its artillery attack, a humiliating setback. Tokyo and Hsinking recognized the futility of achieving a decisive military victory at Nomonhan and shifted toward seeking a diplomatic settlement, even if concessions to the Soviet Union and the MPR were necessary. Kwantung Army, however, opposed negotiations, fearing it would echo the "Changkufeng debacle" and be read by enemies as weakness. Tsuji lamented that Kwantung Army's insistence on framing the second phase as a tie—despite heavy Soviet losses, revealed a reluctance to concede any territory. Differences in outlook and policy between AGS and Kwantung Army—and the central army's inability to impose its will on Manchukuo's field forces—became clear. The military establishment buzzed with stories of gekokujo (the superiority of the superior) within Kwantung Army and its relations with the General Staff. To enforce compliance, AGS ordered General Isogai to Tokyo for briefings, and KwAHQ's leadership occasionally distanced itself from AGS. On July 20, Isogai arrived at General Staff Headquarters and was presented with "Essentials for Settlement of the Nomonhan Incident," a formal document outlining a step-by-step plan for Kwantung Army to maintain its defensive position east of the Halha while diplomatic negotiations proceeded. If negotiations failed, Kwantung Army would withdraw to the boundary claimed by the Soviet Union by winter. Isogai, the most restrained member of the Kwantung Army circle, argued against accepting the Essentials, insisting on preserving Kwantung Army's honor and rejecting a unilateral east-bank withdrawal. A tense exchange followed, but General Nakajima ended the dispute by noting that international boundaries cannot be determined by the army alone. Isogai pledged to report the General Staff's views to his commander and take the Essentials back to KwAHQ for study. Technically, the General Staff's Essentials were not orders; in practice, however, they were treated as such. Kwantung Army tended to view them as suggestions and retained discretion in implementation. AGS hoped the Essentials would mollify Kwantung Army's wounded pride. The August 4 decision to create a 6 Army within Kwantung Army, led by General Ogisu Rippei, further complicated the command structure. Komatsubara's 23rd Division and nearby units were attached to the 6 Army, which also took responsibility for defending west-central Manchukuo, including the Nomonhan area. The 6 Army existed largely on paper, essentially a small headquarters to insulate KwAHQ from battlefield realities. AGS sought a more accountable layer of command between KwAHQ and the combat zone, but General Ueda and KwAHQ resented the move and offered little cooperation. In the final weeks before the last battles, General Ogisu and his small staff had limited influence on Nomonhan. Meanwhile, the European crisis over German demands on Poland intensified, moving into a configuration highly favorable to the Soviet Union. By the first week of August, it became evident in the Kremlin that both Anglo-French powers and the Germans were vying to secure an alliance with Moscow. Stalin knew now that he would likely have a free hand in the coming war in the West. At the same time, Richard Sorge, the Soviet master spy in Tokyo, correctly reported that Japan's top political and military leaders sought to prevent the escalation of the Nomonhan incident into an all-out war. These developments gave the cautious Soviet dictator the confidence to commit the Red Army to large-scale combat operations in eastern Mongolia. In early August, Stalin ordered preparations for a major offensive to clear the Nomonhan area of the "Japanese samurai who had violated the territory of the friendly Outer Mongolian people." The buildup of Zhukov's 1st Army Group accelerated still further. Its July strength was augmented by the 57th and 82nd Infantry Divisions, the 6th Tank Brigade, the 212th Airborne Brigade, numerous smaller infantry, armor, and artillery units, and two Mongolian cavalry divisions. Soviet air power in the area was also greatly strengthened. When this buildup was completed by mid-August, Zhukov commanded an infantry force equivalent to four divisions, supported by two cavalry divisions, 216 artillery pieces, 498 armored vehicles, and 581 aircraft. To bring in the supplies necessary for this force to launch an offensive, General Shtern's Trans-Baikal Military District Headquarters amassed a fleet of more than 4,200 vehicles, which trucked in about 55,000 tons of materiel from the distant railway depot at Borzya. The Japanese intelligence network in Outer Mongolia was weak, a problem that went unremedied throughout the Nomonhan incident. This deficiency, coupled with the curtailment of Kwantung Army's transborder air operations, helps explain why the Japanese remained ignorant of the scope of Zhukov's buildup. They were aware that some reinforcements were flowing eastward across the Trans-Siberian Railway toward the MPR but had no idea of the volume. Then, at the end of July, Kwantung Army Intelligence intercepted part of a Soviet telegraph transmission indicating that preparations were under way for some offensive operation in the middle of August. This caused a stir at KwAHQ. Generals Ueda and Yano suspected that the enemy planned to strike across the Halha River. Ueda's initial reaction was to reinforce the 23rd Division at Nomonhan with the rest of the highly regarded 7th Division. However, the 7th Division was Kwantung Army's sole strategic reserve, and the Operations Section was reluctant to commit it to extreme western Manchukuo, fearing mobilization of Soviet forces in the Maritime Province and a possible attack in the east near Changkufeng. The Kwantung Army commander again ignored his own better judgment and accepted the Operations Section's recommendation. The main strength of the 7th Division remained at its base near Tsitsihar, but another infantry regiment, the 28th, was dispatched to the Nomonhan area, as was an infantry battalion from the Mukden Garrison. Earlier, in mid-July, Kwantung Army had sent Komatsubara 1,160 individual replacements to make up for casualties from earlier fighting. All these reinforcements combined, however, did little more than replace losses: as of July 25, 1,400 killed (including 200 officers) and 3,000 wounded. Kwantung Army directed Komatsubara to dig in, construct fortifications, and adopt a defensive posture. Colonel Numazaki, who commanded the 23rd Division's Engineer Regiment, was unhappy with the defensive line he was ordered to fortify and urged a slight pullback to more easily defensible terrain. Komatsubara, however, refused to retreat from ground his men had bled to take. He and his line officers still nourished hope of a revenge offensive. As a result, the Japanese defensive positions proved to be as weak as Numazaki feared. As Zhukov's 1st Army Group prepared to strike, the effective Japanese strength at Nomonhan was less than 1.5 divisions. Major Tsuji and his colleagues in the Operations Section had little confidence in Kwantung Army's own Intelligence Section, which is part of the reason why Tsuji frequently conducted his own reconnaissance missions. Up to this time it was gospel in the Japanese army that the maximum range for large-scale infantry operations was 125–175 miles from a railway; anything beyond 200 miles from a railway was considered logistically impossible. Since Kwantung Army had only 800 trucks available in all of Manchukuo in 1939, the massive Soviet logistical effort involving more than 4,200 trucks was almost unimaginable to the Japanese. Consequently, the Operations Staff believed it had made the correct defensive deployments if a Soviet attack were to occur, which it doubted. If the enemy did strike at Nomonhan, it was believed that it could not marshal enough strength in that remote region to threaten the reinforced 23rd Division. Furthermore, the 7th Division, based at Tsitsihar on a major rail line, could be transported to any trouble spot on the eastern or western frontier in a few days. KwAHQ advised Komatsubara to maintain a defensive posture and prepare to meet a possible enemy attack around August 14 or 15. At this time, Kwantung Army also maintained a secret organization codenamed Unit 731, officially the Epidemic Prevention and Water Purification Department of the Kwantung Army. Unit 731 specialized in biological and chemical warfare, with main facilities and laboratories in Harbin, including a notorious prison-laboratory complex. During the early August lull at Nomonhan, a detachment from Unit 731 infected the Halha River with bacteria of an acute cholera-like strain. There are no reports in Soviet or Japanese accounts that this attempted biological warfare had any effect. In the war's final days, Unit 731 was disbanded, Harbin facilities demolished, and most personnel fled to Japan—but not before they gassed the surviving 150 human subjects and burned their corpses. The unit's commander, Lieutenant General Ishii Shiro, kept his men secret and threatened retaliation against informers. Ishii and his senior colleagues escaped prosecution at the Tokyo War Crimes Trials by trading the results of their experiments to U.S. authorities in exchange for immunity. The Japanese 6th Army exerted some half-hearted effort to construct defensive fortifications, but scarcity of building materials, wood had to be trucked in from far away—helped explain the lack of enthusiasm. More importantly, Japanese doctrine despised static defense and favored offense, so Kwantung Army waited to see how events would unfold. West of the Halha, Zhukov accelerated preparations. Due to tight perimeter security, few Japanese deserters, and a near-absence of civilian presence, Soviet intelligence found it hard to glean depth on Japanese defensive positions. Combat intelligence could only reveal the frontline disposition and closest mortar and artillery emplacements. Aerial reconnaissance showed photographs, but Japanese camouflage and mock-ups limited their usefulness. The new commander of the 149th Mechanized Infantry Regiment personally directed infiltration and intelligence gathering, penetrating Japanese lines on several nights and returning crucial data: Komatsubara's northern and southern flanks were held by Manchukuoan cavalry, and mobile reserves were lacking. With this information, Zhukov crafted a plan of attack. The main Japanese strength was concentrated a few miles east of the Halha, on both banks of the Holsten River. Their infantry lacked mobility and armor, and their flanks were weak. Zhukov decided to split the 1st Army Group into three strike forces: the central force would deliver a frontal assault to pin the main Japanese strength, while the northern and southern forces, carrying the bulk of the armor, would turn the Japanese flanks and drive the enemy into a pocket to be destroyed by the three-pronged effort. The plan depended on tactical surprise and overwhelming force at the points of attack. The offensive was to begin in the latter part of August, pending final approval from Moscow. To ensure tactical surprise, Zhukov and his staff devised an elaborate program of concealment and deception, disinformation. Units and materiel arriving at Tamsag Bulak toward the Halha were moved only at night with lights out. Noting that the Japanese were tapping telephone lines and intercepting radio messages, 1st Army Headquarters sent a series of false messages in an easily decipherable code about defensive preparations and autumn-winter campaigning. Thousands of leaflets titled "What the Infantryman Should Know about Defense" were distributed among troops. About two weeks before the attack, the Soviets brought in sound equipment to simulate tank and aircraft engines and heavy construction noises, staging long, loud performances nightly. At first, the Japanese mistook the sounds for large-scale enemy activity and fired toward the sounds. After a few nights, they realized it was only sound effects, and tried to ignore the "serenade." On the eve of the attack, the actual concentration and staging sounds went largely unnoticed by the Japanese. On August 7–8, Zhukov conducted minor attacks to expand the Halha bridgehead to a depth of two to three miles. These attacks, contained relatively easily by Komatsubara's troops, reinforced Kwantung Army's false sense of confidence. The Japanese military attaché in Moscow misread Soviet press coverage. In early August, the attaché advised that unlike the Changkufeng incident a year earlier, Soviet press was largely ignoring the conflict, implying low morale and a favorable prognosis for the Red Army. Kwantung Army leaders seized on this as confirmation to refrain from any display of restraint or doubt, misplaced confidence. There were, however, portents of danger. Three weeks before the Soviet attack, Colonel Isomura Takesuki, head of Kwantung Army's Intelligence Section, warned of the vulnerability of the 23rd Division's flanks. Tsuji and colleagues dismissed this, and General Kasahara Yukio of AGS also went unheeded. The "desk jockey" General Staff officers commanded little respect at KwAHQ. Around August 10, General Hata Yuzaburo, Komatsubara's successor as chief of the Special Services Agency at Harbin, warned that enemy strength in the Mongolian salient was very great and seriously underestimated at KwAHQ. Yet no decisive action followed before Zhukov's attack. Kwantung Army's inaction and unpreparedness prior to the Soviet offensive appear to reflect faulty intelligence compounded by hubris. But a more nuanced explanation suggests a fatalistic wishful thinking rooted in the Japanese military culture—the belief that their spiritual strength would prevail, leading them to assume enemy strength was not as great as reported, or that victory was inevitable regardless of resources. Meanwhile, in the rational West, the Nazi war machine faced the Polish frontier as Adolf Hitler pressed Stalin for a nonaggression pact. The German-Soviet Nonaggression Pact would neutralize the threat of a two-front war for Germany and clear the way for Hitler's invasion of Poland. If the pact was a green light, it signaled in both directions: it would also neutralize the German threat to Russia and clear the way for Zhukov's offensive at Nomonhan. On August 18–19, Hitler pressed Stalin to receive Ribbentrop in Moscow to seal the pact. Thus, reassured in the West, Stalin dared to act boldly against Japan. Zhukov supervised final preparations for his attack. Zhukov held back forward deployments until the last minute. By August 18, he had only four infantry regiments, a machine gun brigade, and Mongolian cavalry east of the Halha. Operational security was extremely tight: a week before the attack, Soviet radio traffic in the area virtually ceased. Only Zhukov and a few key officers worked on the plan, aided by a single typist. Line officers and service chiefs received information on a need-to-know basis. The date for the attack was shared with unit commanders one to four days in advance, depending on seniority. Noncommissioned officers and ordinary soldiers learned of the offensive one day in advance and received specific orders three hours before the attack. Heavy rain grounded Japanese aerial reconnaissance from August 17 to midday on the 19th, but on August 19 Captain Oizumi Seisho in a Japanese scout plane observed the massing of Soviet forces near the west bank of the Halha. Enemy armor and troops were advancing toward the river in dispersed formations, with no new bridges but pontoon stocks spotted near the river. Oizumi sent a warning to a frontline unit and rushed back to report. The air group dispatched additional recon planes and discovered that the Japanese garrison on Fui Heights, near the northern end of Komatsubara's line, was being encircled by Soviet armor and mechanized infantry—observed by alarmed Japanese officers on and near the heights. These late discoveries on August 19 were not reported to KwAHQ and had no effect on the 6th Army and the 23rd Division's alertness on the eve of the storm. As is common in militaries, a fatal gap persisted between those gathering intelligence and those in a position to act on it. On the night of August 19–20, under cover of darkness, the bulk of the Soviet 1st Army Group crossed the Halha into the expanded Soviet enclave on the east bank. I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me. By August, European diplomacy left Moscow confident in a foothold against Germany and Britain, while Sorge's intelligence indicated Japan aimed to avoid a full-blown war. Stalin ordered a major offensive to clear Nomonhan, fueling Zhukov's buildup in eastern Mongolia. Kwantung Army, hampered by limited logistics, weak intelligence, and defensive posture, faced mounting pressure.

3.189 Fall and Rise of China: General Zhukov Arrives at Nomonhan

Last time we spoke about the beginning of the Nomohan incident. On the fringes of Manchuria, the ghosts of Changkufeng lingered. It was August 1938 when Soviet and Japanese forces locked in a brutal standoff over a disputed hill, claiming thousands of lives before a fragile ceasefire redrew the lines. Japan, humiliated yet defiant, withdrew, but the Kwantung Army seethed with resentment. As winter thawed into 1939, tensions simmered along the Halha River, a serpentine boundary between Manchukuo and Mongolia. Major Tsuji Masanobu, a cunning tactician driven by gekokujo's fire, drafted Order 1488: a mandate empowering local commanders to annihilate intruders, even luring them across borders. Kwantung's leaders, bonded by past battles, endorsed it, ignoring Tokyo's cautions amid the grinding China War. By May, the spark ignited. Mongolian patrols crossed the river, clashing with Manchukuoan cavalry near Nomonhan's sandy hills. General Komatsubara, ever meticulous, unleashed forces to "destroy" them, bombing west-bank outposts and pursuing retreats. Soviets, bound by pact, rushed reinforcements, their tanks rumbling toward the fray. What began as skirmishes ballooned into an undeclared war. #189 General Zhukov Arrives at Nomohan Welcome to the Fall and Rise of China Podcast, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about the history of Asia? Kings and Generals have an assortment of episodes on history of asia and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel where I cover the history of China and Japan from the 19th century until the end of the Pacific War. Though Kwantung Army prided itself as an elite arm of the Imperial Japanese Army, the 23rd Division, formed less than a year prior, was still raw and unseasoned, lacking the polish and spirit typical of its parent force. From General Michitaro Komatsubara downward, the staff suffered a collective dearth of combat experience. Intelligence officer Major Yoshiyasu Suzuki, a cavalryman, had no prior intel background. While senior regimental commanders were military academy veterans, most company and platoon leaders were fresh reservists or academy graduates with just one or two years under their belts. Upon arriving in Manchukuo in August 1938, the division found its Hailar base incomplete, housing only half its troops; the rest scattered across sites. Full assembly at Hailar occurred in November, but harsh winter weather curtailed large-scale drills. Commanders had scant time to build rapport. This inexperience, inadequate training, and poor cohesion would prove costly at Nomonhan. Japan's army held steady at 17 divisions from 1930 to 1937, but the escalating China conflict spurred seven new divisions in 1938 and nine in 1939. Resource strains from China left many under-equipped, with the 23rd, stationed in a presumed quiet sector, low on priorities. Unlike older "rectangular" divisions with four infantry regiments, the 23rd was a modern "triangular" setup featuring the 64th, 71st, and 72nd. Materiel gaps were glaring. The flat, open terrain screamed for tanks, yet the division relied on a truck-equipped transport regiment and a reconnaissance regiment with lightly armored "tankettes" armed only with machine guns. Mobility suffered: infantry marched the final 50 miles from Hailar to Nomonhan. Artillery was mostly horse-drawn, including 24 outdated Type 38 75-mm guns from 1907, the army's oldest, unique to this division. Each infantry regiment got four 37-mm rapid-fire guns and four 1908-era 75-mm mountain guns. The artillery regiment added 12 120-mm howitzers, all high-angle, short-range pieces ill-suited for flatlands or anti-tank roles. Antitank capabilities were dire: beyond rapid-fire guns, options boiled down to demolition charges and Molotov cocktails, demanding suicidal "human bullet" tactics in open terrain, a fatal flaw against armor. The division's saving grace lay in its soldiers, primarily from Kyushu, Japan's southernmost main island, long famed for hardy warriors. These men embodied resilience, bravery, loyalty, and honor, offsetting some training and gear deficits. Combat at Nomonhan ramped up gradually, with Japanese-Manchukuoan forces initially outnumbering Soviet-Mongolian foes. Soviets faced severe supply hurdles: their nearest rail at Borzya sat 400 miles west of the Halha River, requiring truck hauls over rough, exposed terrain prone to air strikes. Conversely, Hailar was 200 miles from Nomonhan, with the Handagai railhead just 50 miles away, linked by three dirt roads. These advantages, plus Europe's brewing Polish crisis, likely reassured Army General Staff and Kwantung Army Headquarters that Moscow would avoid escalation. Nonetheless, Komatsubara, with KwAHQ's nod, chose force to quash the Nomonhan flare-up. On May 20, Japanese scouts spotted a Soviet infantry battalion and armor near Tamsag Bulak. Komatsubara opted to "nip the incident in the bud," assembling a potent strike force under Colonel Takemitsu Yamagata of the 64th Infantry Regiment. The Yamagata detachment included the 3rd Battalion, roughly four companies, 800 men, a regimental gun company, three 75-mm mountain guns, four 37-mm rapid-fires, three truck companies, and Lieutenant Colonel Yaozo Azuma's reconnaissance group, 220 men, one tankette, two sedans, 12 trucks. Bolstered by 450 local Manchukuoan troops, the 2,000-strong unit was tasked with annihilating all enemy east of the Halha. The assault was set for May 22–23. No sooner had General Komatsubara finalized this plan than he received a message from KwAHQ: "In settling the affair Kwantung Army has definite plans, as follows: For the time being Manchukuoan Army troops will keep an eye on the Outer Mongolians operating near Nomonhan and will try to lure them onto Manchukuoan territory. Japanese forces at Hailar [23rd Division] will maintain surveillance over the situation. Upon verification of a border violation by the bulk of the Outer Mongolian forces, Kwantung Army will dispatch troops, contact the enemy, and annihilate him within friendly territory. According to this outlook it can be expected that enemy units will occupy border regions for a considerable period; but this is permissible from the overall strategic point of view". At this juncture, Kwantung Army Headquarters advocated tactical caution to secure a more conclusive outcome. Yet, General Michitaro Komatsubara had already issued orders for Colonel Takemitsu Yamagata's assault. Komatsubara radioed Hsinking that retracting would be "undignified," resenting KwAHQ's encroachment on his authority much as KwAHQ chafed at Army General Staff interference. Still, "out of deference to Kwantung Army's feelings," he delayed to May 27 to 28. Soviet air units from the 57th Corps conducted ineffective sorties over the Halha River from May 17 to 21. Novice pilots in outdated I 15 biplanes suffered heavily: at least 9, possibly up to 17, fighters and scouts downed. Defense Commissar Kliment Voroshilov halted air ops, aiding Japanese surprise. Yamagata massed at Kanchuerhmiao, 40 miles north of Nomonhan, sending patrols southward. Scouts spotted a bridge over the Halha near its Holsten junction, plus 2 enemy groups of ~200 each east of the Halha on either Holsten side and a small MPR outpost less than a mile west of Nomonhan. Yamagata aimed to trap and destroy these east of the river: Azuma's 220 man unit would drive south along the east bank to the bridge, blocking retreat. The 4 infantry companies and Manchukuoan troops, with artillery, would attack from the west toward enemy pockets, herding them riverward into Azuma's trap. Post destruction, mop up any west bank foes near the river clear MPR soil swiftly. This intricate plan suited early MPR foes but overlooked Soviet units spotted at Tamsag Bulak on May 20, a glaring oversight by Komatsubara and Yamagata. Predawn on May 28, Yamagata advanced from Kanchuerhmiao. Azuma detached southward to the bridge. Unbeknownst, it was guarded by Soviet infantry, engineers, armored cars, and a 76 mm self propelled artillery battery—not just MPR cavalry. Soviets detected Azuma pre dawn but missed Yamagata's main force; surprise was mutual. Soviet MPR core: Major A E Bykov's battalion roughly 1000 men with 3 motorized infantry companies, 16 BA 6 armored cars, 4 76 mm self propelled guns, engineers, and a 5 armored car recon platoon. The 6th MPR Cavalry Division roughly 1250 men had 2 small regiments, 4 76 mm guns, armored cars, and a training company. Bykov arrayed north to south: 2 Soviet infantry on flanks, MPR cavalry center, unorthodox, as cavalry suits flanks. Spread over 10 miles parallel to but east of the Halha, 1 mile west of Nomonhan. Reserves: 1 infantry company, engineers, and artillery west of the river near the bridge; Shoaaiibuu's guns also west to avoid sand. Japanese held initial edges in numbers and surprise, especially versus MPR cavalry. Offsets: Yamagata split into 5 weaker units; radios failed early, hampering coordination; Soviets dominated firepower with self propelled guns, 4 MPR pieces, and BA 6s, armored fighters with 45 mm turret guns, half track capable, 27 mph speed, but thin 9 mm armor vulnerable to close heavy machine guns. Morning of May 28, Yamagata's infantry struck Soviet MPR near Nomonhan, routing lightly armed MPR cavalry and forcing Soviet retreats toward the Halha. Shoaaiibuu rushed his training company forward; Japanese overran his post, killing him and most staff. As combat neared the river, Soviet artillery and armored cars slowed Yamagata. He redirected to a low hill miles east of the Halha with dug in Soviets—failing to notify Azuma. Bykov regrouped 1 to 2 miles east of the Halha Holsten junction, holding firm. By late morning, Yamagata stalled, digging in against Soviet barrages. Azuma, radio silent due to faults, neared the bridge to find robust Soviet defenses. Artillery commander Lieutenant Yu Vakhtin shifted his 4 76 mm guns east to block seizure. Azuma lacked artillery or anti tank tools, unable to advance. With Yamagata bogged down, Azuma became encircled, the encirclers encircled. Runners reached Yamagata, but his dispersed units couldn't rally or breakthrough. By noon, Azuma faced infantry and cavalry from the east, bombardments from west (both Halha sides). Dismounted cavalry dug sandy defenses. Azuma could have broken out but held per mission, awaiting Yamagata, unaware of the plan shift. Pressure mounted: Major I M Remizov's full 149th Regiment recent Tamsag Bulak arrivals trucked in, tilting odds. Resupply failed; ammo dwindled. Post dusk slackening: A major urged withdrawal; Azuma refused, deeming retreat shameful without orders, a Japanese army hallmark, where "retreat" was taboo, replaced by euphemisms like "advance in a different direction." Unauthorized pullback meant execution. Dawn May 29: Fiercer Soviet barrage, 122 mm howitzers, field guns, mortars, armored cars collapsed trenches. An incendiary hit Azuma's sedan, igniting trucks with wounded and ammo. By late afternoon, Soviets closed to 50 yards on 3 fronts; armored cars breached rear. Survivors fought desperately. Between 6:00 and 7:00 p.m., Azuma led 24 men in a banzai charge, cut down by machine guns. A wounded medical lieutenant ordered escapes; 4 succeeded. Rest killed or captured. Komatsubara belatedly reinforced Yamagata on May 29 with artillery, anti tank guns, and fresh infantry. Sources claim Major Tsuji arrived, rebuked Yamagata for inaction, and spurred corpse recovery over 3 nights, yielding ~200 bodies, including Azuma's. Yamagata withdrew to Kanchuerhmiao, unable to oust foes. Ironically, Remizov mistook recovery truck lights for attacks, briefly pulling back west on May 30. By June 3, discovering the exit, Soviet MPR reoccupied the zone. Japanese blamed: (1) poor planning/recon by Komatsubara and Yamagata, (2) comms failures, (3) Azuma's heavy weapon lack. Losses: ~200 Azuma dead, plus 159 killed, 119 wounded, 12 missing from main force, total 500, 25% of detachment. Soviets praised Vakhtin for thwarting pincers. Claims: Bykov 60 to 70 casualties; TASS 40 killed, 70 wounded total Soviet/MPR. Recent Russian: 138 killed, 198 wounded. MPR cavalry hit hard by Japanese and friendly fire. Soviet media silent until June 26; KwAHQ censored, possibly misleading Tokyo. May 30: Kwantung Chief of Staff General Rensuke Isogai assured AGS of avoiding prolongation via heavy frontier blows, downplaying Soviet buildup and escalation. He requested river crossing gear urgently. This hinted at Halha invasion (even per Japanese borders: MPR soil). AGS's General Gun Hashimoto affirmed trust in localization: Soviets' vexations manageable, chastisement easy. Colonel Masazumi Inada's section assessed May 31: 1. USSR avoids expansion. 2. Trust Kwantung localization. 3. Intervene on provocative acts like deep MPR air strikes. Phase 1 ended: Kwantung called it mutual win loss, but inaccurate, Azuma destroyed, heavy tolls, remorse gnawing Komatsubara. On June 1, 1939, an urgent summons from Moscow pulled the young deputy commander of the Byelorussian Military District from Minsk to meet Defense Commissar Marshal Kliment Voroshilov. He boarded the first train with no evident concern, even as the army purges faded into memory. This rising cavalry- and tank-expert, Georgy Konstantinovich Zhukov, would later help defend Moscow in 1941, triumph at Stalingrad and Kursk, and march to Berlin as a Hero of the Soviet Union.Born in 1896 to a poor family headed by a cobbler, Zhukov joined the Imperial Army in 1915 as a cavalryman. Of average height but sturdy build, he excelled in horsemanship and earned the Cross of St. George and noncommissioned status for bravery in 1916. After the October Revolution, he joined the Red Army and the Bolshevik Party, fighting in the Civil War from 1918 to 1921. His proletarian roots, tactical skill, and ambition propelled him: command of a regiment by 1923, a division by 1931. An early advocate of tanks, he survived the purges, impressing superiors as a results-driven leader and playing a key role in his assignment to Mongolia. In Voroshilov's office on June 2, Zhukov learned of recent clashes. Ordered to fly east, assess the situation, and assume command if needed, he soon met acting deputy chief Ivan Smorodinov, who urged candid reports. Europe's war clouds and rising tensions with Japan concerned the Kremlin. Hours later, Zhukov and his staff flew east. Arriving June 5 at Tamsag Bulak (57th Corps HQ), Zhukov met the staff and found Corps Commander Nikolai Feklenko and most aides clueless; only Regimental Commissar M. S. Nikishev had visited the front. Zhukov toured with Nikishev that afternoon and was impressed by his grasp. By day's end, Zhukov bluntly reported: this is not a simple border incident; the Japanese are likely to escalate; the 57th Corps is inadequate. He suggested holding the eastern Halha bridgehead until reinforcements could enable a counteroffensive, and he criticized Feklenko. Moscow replied on June 6: relieve Feklenko; appoint Zhukov. Reinforcements arrived: the 36th Mechanized Infantry Division; the 7th, 8th, and 9th Mechanized Brigades; the 11th Tank Brigade; the 8th MPR Cavalry Division; a heavy artillery regiment; an air wing of more than 100 aircraft, including 21 pilots who had earned renown in the Spanish Civil War. The force was redesignated as the First Army Group. In June, these forces surged toward Tamsag Bulak, eighty miles west of Halha. However, General Michitaro Komatsubara's 23rd Division and the Kwantung Army Headquarters missed the buildup and the leadership change, an intelligence failure born of carelessness and hubris and echoing May's Azuma disaster, with grave battlefield consequences. Early June remained relatively quiet: the Soviet MPR expanded the east-bank perimeter modestly; there was no major Japanese response. KwAHQ's Commander General Kenkichi Ueda, hoping for a quick closure, toured the Fourth Army from May 31 to June 18. Calm broke on June 19. Komatsubara reported two Soviet strikes inside Manchukuo: 15 planes hit Arshan, inflicting casualties on men and horses; 30 aircraft set fire to 100 petroleum barrels near Kanchuerhmiao. In fact, the raids were less dramatic than described: not on Kanchuerhmiao town (a 3,000-person settlement, 40 miles northwest of Nomonhan) but on a supply dump 12 miles south of it. "Arshan" referred to a small village near the border, near Arshanmiao, a Manchukuoan cavalry depot, not a major railhead at Harlun Arshan 100 miles southeast. The raids were strafing runs rather than bombs. Possibly retaliation for May 15's Japanese raid on the MPR Outpost 7 (two killed, 15 wounded) or a response to Zhukov's bridgehead push. Voroshilov authorized the action; motive remained unclear. Nonetheless, KwAHQ, unused to air attacks after dominating skies in Manchuria, Shanghai (1932), and China, was agitated. The situation resembled a jolt akin to the 1973 North Vietnamese strike on U.S. bases in Thailand: not unprovoked, but shocking. Midday June 19, the Operations Staff met. Major Masanobu Tsuji urged swift reprisal; Colonel Masao Terada urged delay in light of the Tientsin crisis (the new Japanese blockade near Peking). Tsuji argued that firmness at Nomonhan would impress Britain; inaction would invite deeper Soviet bombardments or invasion. He swayed Chief Colonel Takushiro Hattori and others, including Terada. They drafted a briefing: the situation was grave; passivity risked a larger invasion and eroded British respect for Japanese might. After two hours of joint talks, most KwAHQ members supported a strong action. Tsuji drafted a major Halha crossing plan to destroy Soviet MPR forces. Hattori and Terada pressed the plan to Chief of Staff General Rensuke Isogai, an expert on Manchukuo affairs but not operations; he deferred to Deputy General Otozaburo Yano, who was absent. They argued urgency; Isogai noted delays in AGS approval. The pair contended for local Kwantung prerogative, citing the 1937 Amur cancellation; AGS would likely veto. Under pressure, Isogai assented, pending Ueda's approval. Ueda approved but insisted that the 23rd Division lead, not the 7th. Hattori noted the 7th's superiority (four regiments in a "square" arrangement versus the 23rd's three regiments, with May unreliability). Ueda prioritized Komatsubara's honor: assigning another division would imply distrust; "I'd rather die." The plan passed on June 19, an example of gekokujo in action. The plan called for reinforcing the 23rd with: the 2nd Air Group (180 aircraft, Lieutenant General Tetsuji Gigi); the Yasuoka Detachment (Lieutenant General Masaomi Yasuoka: two tank regiments, motorized artillery, and the 26th Infantry of the 7th). Total strength: roughly 15,000 men, 120 guns, 70 tanks, 180 aircraft. KwAHQ estimated the enemy at about 1,000 infantry, 10 artillery pieces, and about 12 armored vehicles, expecting a quick victory. Reconnaissance to Halha was curtailed to avoid alerting the Soviets. Confidence ran high, even as intel warned otherwise. Not all leaders were convinced: the 23rd's ordnance colonel reportedly committed suicide over "awful equipment." An attaché, Colonel Akio Doi, warned of growing Soviet buildup, but operations dismissed the concern. In reality, Zhukov's force comprised about 12,500 men, 109 guns, 186 tanks, 266 armored cars, and more than 100 aircraft, offset by the Soviets' armor advantage. The plan echoed Yamagata's failed May 28 initiative: the 23rd main body would seize the Fui Heights (11 miles north of Halha's Holsten junction), cross by pontoon, and sweep south along the west bank toward the Soviet bridge. Yasuoka would push southeast of Halha to trap and destroy the enemy at the junction. On June 20, Tsuji briefed Komatsubara at Hailar, expressing Ueda's trust while pressing to redeem May's failures. Limited pontoon capacity would not support armor; the operation would be vulnerable to air power. Tsuji's reconnaissance detected Soviet air presence at Tamsag Bulak, prompting a preemptive strike and another plan adjustment. KwAHQ informed Tokyo of the offensive in vague terms (citing raids but withholding air details). Even this caused debate; Minister Seishiro Itagaki supported Ueda's stance, favoring a limited operation to ease nerves. Tokyo concurred, unaware of the air plans. Fearing a veto on the Tamsag Bulak raid (nearly 100 miles behind MPR lines), KwAHQ shielded details from the Soviets and Tokyo. A June 29–30 ground attack was prepared; orders were relayed by courier. The leak reached Tokyo on June 24. Deputy Chief General Tetsuzo Nakajima telegrammed three points: 1) AGS policy to contain the conflict and avoid West MPR air attacks; 2) bombing risks escalation; 3) sending Lieutenant Colonel Yadoru Arisue on June 25 for liaison. Polite Japanese diplomatic phrasing allowed Operations to interpret the message as a suggestion. To preempt Arisue's explicit orders, Tsuji urged secrecy from Ueda, Isogai, and Yano, and an advanced raid to June 27. Arisue arrived after the raid on Tamsag Bulak and Bain Tumen (deeper into MPR territory, now near Choibalsan). The Raid resulted in approximately 120 Japanese planes surprising the Soviets, grounding and destroying aircraft and scrambling their defense. Tsuji, flying in a bomber, claimed 25 aircraft destroyed on the ground and about 100 in the air. Official tallies reported 98 destroyed and 51 damaged; ground kills estimated at 50 to 60 at Bain Tumen. Japanese losses were relatively light: one bomber, two fighters, one scout; seven dead. Another Japanese bomber was shot down over MPR, but the crew was rescued. The raid secured air superiority for July. Moscow raged over the losses and the perceived failure to warn in time. In the purge era, blame fell on suspected spies and traitors; Deputy Mongolian Commander Luvsandonoi and ex-57th Deputy A. M. Kushchev were accused, arrested, and sent to Moscow. Luvsandonoi was executed; Kushchev received a four-year sentence, later rising to major general and Hero. KwAHQ celebrated; Operations notified AGS by radio. Colonel Masazumi Inada rebuked: "You damned idiot! What do you think the true meaning of this little success is?" A withering reprimand followed. Stunned but unrepentant, KwAHQ soon received Tokyo's formal reprimand: "Report was received today regarding bombing of Outer Mongolian territory by your air units… . Since this action is in fundamental disagreement with policy which we understood your army was taking to settle incident, it is extremely regretted that advance notice of your intent was not received. Needless to say, this matter is attended with such farreaching consequences that it can by no means be left to your unilateral decision. Hereafter, existing policy will be definitely and strictly observed. It is requested that air attack program be discontinued immediately" By Order of the Chief of Staff By this time, Kwantung Army staff officers stood in high dudgeon. Tsuji later wrote that "tremendous combat results were achieved by carrying out dangerous operations at the risk of our lives. It is perfectly clear that we were carrying out an act of retaliation. What kind of General Staff ignores the psychology of the front lines and tramples on their feelings?" Tsuji drafted a caustic reply, which Kwantung Army commanders sent back to Tokyo, apparently without Ueda or other senior KwAHQ officers' knowledge: "There appear to be certain differences between the Army General Staff and this Army in evaluating the battlefield situation and the measures to be adopted. It is requested that the handling of trivial border-area matters be entrusted to this Army." That sarcastic note from KwAHQ left a deep impression at AGS, which felt something had to be done to restore discipline and order. When General Nakajima informed the Throne about the air raid, the emperor rebuked him and asked who would assume responsibility for the unauthorized attack. Nakajima replied that military operations were ongoing, but that appropriate measures would be taken after this phase ended. Inada sent Terada a telegram implying that the Kwantung Army staff officers responsible would be sacked in due course. Inada pressed to have Tsuji ousted from Kwantung Army immediately, but personnel matters went through the Army Ministry, and Army Minister Itagaki, who knew Tsuji personally, defended him. Tokyo recognized that the situation was delicate; since 1932, Kwantung Army had operated under an Imperial Order to "defend Manchukuo," a broad mandate. Opinions differed in AGS about how best to curb Kwantung Army's operational prerogatives. One idea was to secure Imperial sanction for a new directive limiting Kwantung Army's autonomous combat actions to no more than one regiment. Several other plans circulated. In the meantime, Kwantung Army needed tighter control. On June 29, AGS issued firm instructions to KwAHQ: Directives: a) Kwantung Army is responsible for local settlement of border disputes. b) Areas where the border is disputed, or where defense is tactically unfeasible, need not be defended. Orders: c) Ground combat will be limited to the border region between Manchukuo and Outer Mongolia east of Lake Buir Nor. d) Enemy bases will not be attacked from the air. With this heated exchange of messages, the relationship between Kwantung Army and AGS reached a critical moment. Tsuji called it the "breaking point" between Hsinking and Tokyo. According to Colonel Inada, after this "air raid squabble," gekokujo became much more pronounced in Hsinking, especially within Kwantung Army's Operations Section, which "ceased making meaningful reports" to the AGS Operations Section, which he headed. At KwAHQ, the controversy and the perception of AGS interference in local affairs hardened the resolve of wavering staff officers to move decisively against the USSR. Thereafter, Kwantung Army officers as a group rejected the General Staff's policy of moderation in the Nomonhan incident. Tsuji characterized the conflict between Kwantung Army and the General Staff as the classic clash between combat officers and "desk jockeys." In his view, AGS advocated a policy of not invading enemy territory even if one's own territory was invaded, while Kwantung Army's policy was not to allow invasion. Describing the mindset of the Kwantung Army (and his own) toward the USSR in this border dispute, Tsuji invoked the samurai warrior's warning: "Do not step any closer or I shall be forced to cut you down." Tsuji argued that Kwantung Army had to act firmly at Nomonhan to avoid a larger war later. He also stressed the importance, shared by him and his colleagues, of Kwantung Army maintaining its dignity, which he believed was threatened by both enemy actions and the General Staff. In this emotionally charged atmosphere, the Kwantung Army launched its July offensive. The success of the 2nd Air Group's attack on Tamsag Bulak further inflated KwAHQ's confidence in the upcoming offensive. Although aerial reconnaissance had been intentionally limited to avoid alarming or forewarning the enemy, some scout missions were flown. The scouts reported numerous tank emplacements under construction, though most reports noted few tanks; a single report of large numbers of tanks was downplayed at headquarters. What drew major attention at KwAHQ were reports of large numbers of trucks leaving the front daily and streaming westward into the Mongolian interior. This was interpreted as evidence of a Soviet pullback from forward positions, suggesting the enemy might sense the imminent assault. Orders were issued to speed up final preparations for the assault before Soviet forces could withdraw from the area where the Japanese "meat cleaver" would soon dismember them. What the Japanese scouts had actually observed was not a Soviet withdrawal, but part of a massive truck shuttle that General Grigori Shtern, now commander of Soviet Forces in the Far East, organized to support Zhukov. Each night, Soviet trucks, from distant MPR railway depots to Tamsag Bulak and the combat zone, moved eastward with lights dimmed, carrying supplies and reinforcements. By day, the trucks returned westward for fresh loads. It was these returning trucks, mostly empty, that the Japanese scouts sighted. The Kwantung interpretation of this mass westbound traffic was a serious error, though understandable. The Soviet side was largely ignorant of Japanese preparations, partly because the June 27 air raid had disrupted Soviet air operations, including reconnaissance. In late June, the 23rd Division and Yasuoka's tank force moved from Hailar and Chiangchunmiao toward Nomonhan. A mix of military and civilian vehicles pressed into service, but there was still insufficient motorized transport to move all troops and equipment at once. Most infantry marched the 120 miles to the combat zone, under a hot sun, carrying eighty-pound loads. They arrived after four to six days with little time to recover before the scheduled assault. With Komatsubara's combined force of about 15,000 men, 120 guns, and 70 tanks poised to attack, Kwantung Army estimated Soviet-MPR strength near Nomonhan and the Halha River at about 1,000 men, perhaps ten anti-aircraft guns, ten artillery pieces, and several dozen tanks. In reality, Japanese air activity, especially the big raid of June 27, had put the Soviets on alert. Zhukov suspected a ground attack might occur, though nothing as audacious as a large-scale crossing of the Halha was anticipated. During the night of July 1, Zhukov moved his 11th Tank Brigade, 7th Mechanized Brigade, and 24th Mechanized Infantry Regiment (36th Division) from their staging area near Tamsag Bulak to positions just west of the Halha River. Powerful forces on both sides were being marshaled with little knowledge of the enemy's disposition. As the sun scorched the Mongolian steppes, the stage was set for a clash that would echo through history. General Komatsubara's 23rd Division, bolstered by Yasuoka's armored might and the skies commanded by Gigi's air group, crept toward the Halha River like a predator in the night. Fifteen thousand Japanese warriors, their boots heavy with dust and resolve, prepared to cross the disputed waters and crush what they believed was a faltering foe. Little did they know, Zhukov's reinforcements, tanks rumbling like thunder, mechanized brigades poised in the shadows, had transformed the frontier into a fortress of steel. Miscalculations piled like sand dunes: Japanese scouts mistook supply convoys for retreats, while Soviet eyes, blinded by the June raid, underestimated the impending storm. Kwantung's gekokujo spirit burned bright, defying Tokyo's cautions, as both sides hurtled toward a brutal reckoning. What began as border skirmishes now threatened to erupt into full-scale war, testing the mettle of empires on the edge. I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me. Patrols in May led to failed Japanese offensives, like Colonel Yamagata's disastrous assault and the Azuma detachment's annihilation. Tensions rose with air raids, including Japan's June strike on Soviet bases. By July, misjudged intelligence set the stage for a major confrontation, testing imperial ambitions amid global war clouds.

3.188 Fall and Rise of China: From Changkufeng to Nomonhan

Last time we spoke about The Battle of Suixian–Zaoyang-Shatow. Following the brutal 1938 capture of Wuhan, Japanese forces aimed to solidify their hold by launching an offensive against Chinese troops in the 5th War Zone, a rugged natural fortress in northern Hubei and southern Henan. Under General Yasuji Okamura, the 11th Army deployed three divisions and cavalry in a pincer assault starting May 1, 1939, targeting Suixian and Zaoyang to crush Nationalist resistance and secure flanks. Chinese commander Li Zongren, leveraging terrain like the Dabie and Tongbai Mountains, orchestrated defenses with over 200,000 troops, including Tang Enbo's 31st Army Group. By May 23, they recaptured Suixian and Zaoyang, forcing a Japanese withdrawal with heavy losses, over 13,000 Japanese casualties versus 25,000 Chinese, restoring pre-battle lines. Shifting south, Japan targeted Shantou in Guangdong to sever supply lines from Hong Kong. In a massive June 21 amphibious assault, the 21st Army overwhelmed thin Chinese defenses, capturing the port and Chao'an despite guerrilla resistance led by Zhang Fakui. Though losses mounted, Japan tightened its blockade, straining China's war effort amid ongoing attrition. #188 From Changkufeng to Nomonhan Welcome to the Fall and Rise of China Podcast, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about the history of Asia? Kings and Generals have an assortment of episodes on history of asia and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel where I cover the history of China and Japan from the 19th century until the end of the Pacific War. Well hello again, and yes you all have probably guessed we are taking another detour. Do not worry I hope to shorten this one a bit more so than what became a sort of mini series on the battle of Changkufeng or Battle of Lake Khasan. What we are about to jump into is known in the west as the battle of khalkin Gol, by the Japanese the Nomohan incident. But first I need to sort of set the table up so to say. So back on August 10th, 1938 the Litvinov-Shigemitsu agreement established a joint border commission tasked with redemarcating the disputed boundary between the Soviet Union and Japanese-controlled Manchukuo. However, this commission never achieved a mutually agreeable definition of the border in the contested area. In reality, the outcome was decided well before the group's inaugural meeting. Mere hours after the cease-fire took effect on the afternoon of August 11, General Grigory Shtern convened with a regimental commander from Japan's 19th Division to coordinate the disengagement of forces. With the conflict deemed "honorably" concluded, Japan's Imperial General Headquarters mandated the swift withdrawal of all Japanese troops to the west bank of the Tumen River. By the night of August 13, as the final Japanese soldier crossed the river, it effectively became the de facto border. Soviet forces promptly reoccupied Changkufeng Hill and the adjacent heights—a move that would carry unexpected and profound repercussions. Authoritative Japanese military analyses suggest that if negotiations in Moscow had dragged on for just one more day, the 19th Division would likely have been dislodged from Changkufeng and its surrounding elevations. Undoubtedly, General Shtern's infantry breathed a sigh of relief as the bloodshed ceased. Yet, one can't help but question why Moscow opted for a cease-fire at a juncture when Soviet troops were on the cusp of total battlefield triumph. Perhaps Kremlin leaders deemed it wiser to settle for a substantial gain, roughly three-quarters of their objectives, rather than risk everything. After all, Japan had mobilized threatening forces in eastern Manchuria, and the Imperial Army had a history of impulsive, unpredictable aggression. Moreover, amid the escalating crisis over Czechoslovakia, Moscow may have been wary of provoking a broader Asian conflict. Another theory posits that Soviet high command was misinformed about the ground situation. Reports of capturing a small segment of Changkufeng's crest might have been misinterpreted as control over the entire ridge, or an imminent full takeover before midnight on August 10. The unexpected phone call from Foreign Minister Maxim Litvinov to the Japanese embassy that night—proposing a one-kilometer Japanese retreat in exchange for a cease-fire along existing lines—hints at communication breakdowns between Shtern's headquarters and the Kremlin. Ironically, such lapses may have preserved Japanese military honor, allowing the 19th Division's evacuation through diplomacy rather than defeat. Both sides endured severe losses. Initial Japanese press reports claimed 158 killed and 740 wounded. However, the 19th Division's medical logs reveal a grimmer toll: 526 dead and 914 injured, totaling 1,440 casualties. The true figure may have climbed higher, possibly to 1,500–2,000. Following the armistice, the Soviet news agency TASS reported 236 Red Army fatalities and 611 wounded. Given Shtern's uphill assaults across open terrain against entrenched positions, these numbers seem understated. Attackers in such scenarios typically suffered two to three times the defenders' losses, suggesting Soviet casualties ranged from 3,000 to 5,000. This aligns with a Soviet Military Council investigation on August 31, 1938, which documented 408 killed and 2,807 wounded. Japanese estimates placed Soviet losses even higher, at 4,500–7,000. Not all victims perished in combat. Marshal Vasily Blyukher, a decorated Soviet commander, former warlord of the Far East, and Central Committee candidate, was summoned to Moscow in August 1938. Relieved of duty in September and arrested with his family in October, he faced charges of inadequate preparation against Japanese aggression and harboring "enemies of the people" within his ranks. On November 9, 1938, Blyukher died during interrogation a euphemism for torture-induced death.Other innocents suffered as well. In the wake of the fighting, Soviet authorities deported hundreds of thousands of Korean rice farmers from the Ussuri region to Kazakhstan, aiming to eradicate Korean settlements that Japanese spies had allegedly exploited. The Changkufeng clash indirectly hampered Japan's Wuhan offensive, a massive push to subdue China. The influx of troops and supplies for this campaign was briefly disrupted by the border flare-up. Notably, Kwantung Army's 2nd Air Group, slated for Wuhan, was retained due to the Soviet threat. Chiang Kai-shek's drastic measure, breaching the Yellow River dikes to flood Japanese advance routes—further delayed the assault. By October 25, 1938, when Japanese forces captured Hankow, Chiang had relocated his capital to distant Chungking. Paradoxically, Wuhan's fall cut rail links from Canton inland, heightening Chiang's reliance on Soviet aid routed overland and by air from Central Asia. Japan secured a tactical win but missed the decisive blow; Chinese resistance persisted, pinning down a million Japanese troops in occupation duties. What was the true significance of Changkufeng? For General Koiso Suetaka and the 19th Division, it evoked a mix of bitterness and pride. Those eager for combat got their share, though not on their terms. To veterans mourning fallen comrades on those desolate slopes, it might have felt like senseless tragedy. Yet, they fought valiantly under dire conditions, holding firm until a retreat that blended humiliation with imperial praise, a bittersweet inheritance. For the Red Army, it marked a crucial trial of resolve amid Stalin's purges. While Shtern's forces didn't shine brilliantly, they acquitted themselves well in adversity. The U.S. military attaché in Moscow observed that any purge-related inefficiencies had been surmounted, praising the Red Army's valor, reliability, and equipment. His counterpart in China, Colonel Joseph Stilwell, put it bluntly: the Soviets "appeared to advantage," urging skeptics to rethink notions of a weakened Red Army. Yet, by World War II's eve, many British, French, German, and Japanese leaders still dismissed it as a "paper tiger." Soviet leaders appeared content, promoting Shtern to command the Transbaikal Military District and colonel general by 1940, while honoring "Heroes of Lake Khasan" with medals. In a fiery November 7, 1938, speech, Marshal Kliment Voroshilov warned that future incursions would prompt strikes deep into enemy territory. Tokyo's views diverged sharply. Many in the military and government saw it as a stain on Imperial Army prestige, especially Kwantung Army, humiliated on Manchukuo soil it swore to protect. Colonel Masanobu Tsuji Inada, however, framed it as a successful reconnaissance, confirming Soviet border defense without broader aggression, allowing the Wuhan push to proceed safely. Critics, including Major General Gun Hashimoto and historians, questioned this. They argued IGHQ lacked contingency plans for a massive Soviet response, especially with Wuhan preparations underway since June. One expert warned Japan had "played with fire," risking Manchuria and Korea if escalation occurred. Yet, Japanese commanders gleaned few lessons, downplaying Soviet materiel superiority and maintaining disdain for Red Army prowess. The 19th Division's stand against outnumbered odds reinforced this hubris, as did tolerance for local insubordination—attitudes that would prove costly. The Kremlin, conversely, learned Japan remained unpredictable despite its China quagmire. But for Emperor Hirohito's intervention, the conflict might have ballooned. Amid purges and the Czech crisis, Stalin likely viewed it as a reminder of eastern vulnerabilities, especially with Munich advancing German threats westward. Both sides toyed with peril. Moderation won in Tokyo, but Kwantung Army seethed. On August 11, Premier Fumimaro Konoye noted the need for caution. Kwantung, however, pushed for and secured control of the disputed salient from Chosen Army by October 8, 1938. Even winter's chill couldn't quench their vengeful fire, setting the stage for future confrontations. A quick look at the regional map reveals how Manchukuo and the Mongolian People's Republic each jut into the other's territory like protruding salients. These bulges could be seen as aggressive thrusts into enemy land, yet they also risked encirclement and absorption by the opposing empire. A northward push from western Manchuria through Mongolia could sever the MPR and Soviet Far East from the USSR's heartland. Conversely, a pincer movement from Mongolia and the Soviet Maritime Province might envelop and isolate Manchukuo. This dynamic highlights the frontier's strategic volatility in the 1930s. One particularly tense sector was the broad Mongolian salient extending about 150 miles eastward into west-central Manchukuo. There, in mid-1939, Soviet-Japanese tensions erupted into major combat. Known to the Japanese as the Nomonhan Incident and to the Soviets and Mongolians as the Battle of Khalkhin Gol, this clash dwarfed the earlier Changkufeng affair in scale, duration, and impact. Spanning four months and claiming 30,000 to 50,000 casualties, it amounted to a small undeclared war, the modern era's first limited conflict between great powers. The Mongolian salient features vast, semiarid plains of sandy grassland, gently rolling terrain dotted with sparse scrub pines and low shrubs. The climate is unforgivingly continental: May brings hot days and freezing nights, while July and August see daytime highs exceeding 38°C (100°F in American units), with cool evenings. Swarms of mosquitoes and massive horseflies necessitate netting in summer. Rainfall is scarce, but dense morning fogs are common in August. Come September, temperatures plummet, with heavy snows by October and midwinter lows dipping to –34°C. This blend of North African aridity and North Dakotan winters supports only sparse populations, mainly two related but distinct Mongol tribes. The Buriat (or Barga) Mongols migrated into the Nomonhan area from the northwest in the late 17th to early 18th centuries, likely fleeing Russian expansion after the 1689 Treaty of Nerchinsk. Organized by Manchu emperors between 1732 and 1735, they settled east of the river they called Khalkhin Gol (Mongolian for "river"), in lands that would later become Manchukuo. The Khalkha Mongols, named for the word meaning "barrier" or "shield," traditionally guarded the Mongol Empire's northern frontiers. Their territories lay west of the Buriats, in what would become the MPR. For centuries, these tribes herded livestock across sands, river crossings, and desert paths, largely oblivious to any formal borders. For hundreds of years, the line dividing the Mongolian salient from western Manchuria was a hazy administrative divide within the Qing Empire. In the 20th century, Russia's detachment of Outer Mongolia and Japan's seizure of Manchuria transformed this vague boundary into a frontline between rival powers. The Nomonhan Incident ignited over this contested border. Near the salient's northeastern edge, the river, called Khalkhin Gol by Mongols and Soviets, and Halha by Manchurians and Japanese, flows northwest into Lake Buir Nor. The core dispute: Was the river, as Japan asserted, the historic boundary between Manchukuo and the MPR? Soviet and MPR officials insisted the line ran parallel to and 10–12 miles east of the river, claiming the intervening strip. Japan cited no fewer than 18 maps, from Chinese and Japanese sources, to support the river as the border, a logical choice in such barren terrain, where it served as the sole natural divider. Yet, Soviets and Mongolians countered with evidence like a 1919 Chinese postal atlas and maps from Japanese and Manchukuoan agencies (1919–1934). Unbeknownst to combatants, in July 1939, China's military attaché in Moscow shared a 1934 General Staff map with his American counterpart, showing the border east of the river. Postwar Japanese studies of 18th-century Chinese records confirm that in 1734, the Qing emperor set a boundary between Buriat and Khalkha Mongols east of the river, passing through the hamlet of Nomonhan—as the Soviets claimed. However, Kwantung Army Headquarters dismissed this as non-binding, viewing it as an internal Qing affair without Russian involvement. Two former Kwantung Army officers offer a pragmatic explanation: From 1931 to 1935, when Soviet forces in the Far East were weak, Japanese and Manchukuoan authorities imposed the river as the de facto border, with MPR acquiescence. By the mid- to late 1930s, as Soviet strength grew, Japan refused to yield, while Mongolians and Soviets rejected the river line, sparking clashes. In 1935, Kwantung Army revised its maps to align with the river claim. From late that year, the Lake Buir Nor–Halha sector saw frequent skirmishes between Manchukuoan and MPR patrols. Until mid-1938, frontier defense in northwestern Manchukuo fell to the 8th Border Garrison Unit , based near Hailar. This 7,000-man force, spread thin, lacked mobility, training, and, in Kwantung Army's eyes, combat readiness. That summer, the newly formed 23rd Division, under Kwantung Army, took station at Hailar, absorbing the 8th BGU under its command, led by Lieutenant General Michitaro Komatsubara. At 52, Komatsubara was a premier Russian specialist in the Imperial Army, with stints as military attaché in the USSR and head of Kwantung's Special Services Agency in Harbin. Standing 5'7" with a sturdy build, glasses, and a small mustache, he was detail-oriented, keeping meticulous diaries, writing lengthy letters, and composing poetry, though he lacked combat experience. Before departing Tokyo in July 1938, Komatsubara received briefings from Colonel Masazumi Inada, AGS Operations Section chief. Amid planning for Changkufeng, Inada urged calm on the Manchukuo-MPR border given China's ongoing campaigns. Guidelines: Ignore minor incidents, prioritize intelligence on Soviet forces east of Lake Baikal, and study operations against the Soviet Far East's western sector. Familiar with the region from his Harbin days, Komatsubara adopted a low-key approach. Neither impulsive nor aggressive, he kept the green 23rd Division near Hailar, delegating patrols to the 8th BGU. An autumn incident underscores his restraint. On November 1, 1938, an 8th BGU patrol was ambushed by MPR forces. Per Japanese accounts, the three-man team, led by a lieutenant, strayed too close to the border and was attacked 50 meters inside Manchukuo. The lieutenant escaped, but his men died. Komatsubara sent an infantry company to secure the site but forbade retaliation. He pursued body recovery diplomatically, protested to MPR and Soviet officials, and disciplined his officers: garrison leaders got five days' confinement for poor troop training, the lieutenant thirty days. Despite this caution, pressures at AGS and KwAHQ were mounting, poised to thrust the 23rd Division into fierce battle. Modern militaries routinely develop contingency plans against potential adversaries, and the mere existence of such strategies doesn't inherently signal aggressive intentions. That said, shifts in Japan's operational planning vis-à-vis the Soviet Union may have inadvertently fueled the Nomonhan Incident. From 1934 to 1938, Japanese war scenarios emphasized a massive surprise assault in the Ussuri River region, paired with defensive holding actions in northwestern Manchuria. However, between mid-1938 and early 1939, a clandestine joint task force from the Army General Staff and Kwantung Army's Operations Departments crafted a bold new blueprint. This revised strategy proposed containing Soviet forces in the east and north while unleashing a full-scale offensive from Hailar, advancing west-northwest toward Chita and ultimately Lake Baikal. The goal: sever the Transbaikal Soviet Far East from the USSR's core. Dubbed Plan Eight-B, it gained Kwantung Army's endorsement in March 1939. Key architects—Colonels Takushiro Hattori and Masao Terada, along with Major Takeharu Shimanuki—were reassigned from AGS to Kwantung Army Headquarters to oversee implementation. The plan anticipated a five-year buildup before execution, with Hattori assuming the role of chief operations staff officer. A map review exposes a glaring vulnerability in Plan Eight-B: the Japanese advance would leave its southern flank exposed to Soviet counterstrikes from the Mongolian salient. By spring 1939, KwAHQ likely began perceiving this protrusion as a strategic liability. Notably, at the outbreak of Nomonhan hostilities, no detailed operational contingencies for the area had been formalized. Concurrently, Japan initiated plans for a vital railroad linking Harlun Arshan to Hailar. While its direct tie to Plan Eight-B remains unclear, the route skirted perilously close to the Halha River, potentially heightening KwAHQ's focus on the disputed Mongolian salient. In early 1939, the 23rd Division intensified reconnaissance patrols near the river. Around this time, General Grigory Shtern, freshly appointed commander of Soviet Far Eastern forces, issued a public warning that Japan was gearing up for an assault on the Mongolian People's Republic. As Plan Eight-B took shape and railroad proposals advanced, KwAHQ issued a strikingly confrontational set of guidelines for frontier troops. These directives are often cited as a catalyst for the Nomonhan clash, forging a chain linking the 1937 Amur River incident, the 1938 Changkufeng debacle, and the 1939 conflict.Resentment had festered at KwAHQ over perceived AGS meddling during the Amur affair, which curtailed their command autonomy. This frustration intensified at Changkufeng, where General Kamezo Suetaka's 19th Division endured heavy losses, only for the contested Manchukuoan territory to be effectively ceded. Kwantung Army lobbied successfully to wrest oversight of the Changkufeng salient from Chosen Army. In November 1938, Major Masanobu Tsuji of KwAHQ's Operations Section was sent to survey the site. The audacious officer was dismayed: Soviet forces dominated the land from the disputed ridge to the Tumen River. Tsuji undertook several winter reconnaissance missions. His final outing in March 1939 involved leading 40 men to Changkufeng's base. With rifles slung non-threateningly, they ascended to within 200 yards of Soviet lines, formed a line, and urinated in unison, eliciting amused reactions from the enemy. They then picnicked with obentos and sake, sang army tunes, and left gifts of canned meat, chocolates, and whiskey. This theatrical stunt concealed Tsuji's real aim: covert photography proving Soviet fortifications encroached on Manchukuoan soil. Tsuji was a singular figure. Born of modest means, he embodied a modern samurai ethos, channeling a sharp intellect into a frail, often ailing body through feats of extraordinary daring. A creative tactician, he thrived in intelligence ops, political scheming, aerial scouting, planning, and frontline command—excelling across a tumultuous career. Yet, flaws marred his brilliance: narrow bigotry, virulent racism, and capacity for cruelty. Ever the ambitious outsider, Tsuji wielded outsized influence via gekokujo—Japan's tradition of subordinates steering policy from below. In 1939, he was a major, but his pivotal role at Nomonhan stemmed from this dynamic. Back in Hsinking after his Changkufeng escapade, Tsuji drafted a response plan: negotiate border "rectification" with the Soviets; if talks failed, launch an attack to expel intruders. Kwantung Army adopted it. Deputy Chief of Staff Major General Otozaburo Yano flew to Tokyo with Tsuji's photos, seeking AGS approval. There, he was rebuffed—Changkufeng was deemed settled, and minor violations should be overlooked amid Tokyo's aversion to Soviet conflict. Yano's plea that leniency would invite aggression was countered by notes on Europe's tensions restraining Moscow. Yano's return sparked outrage at KwAHQ, seen as AGS thwarting their imperial duty to safeguard Manchukuo. Fury peaked in the Operations Section, setting the stage for Tsuji's drafting of stringent new frontier guidelines: "Principles for the Settlement of Soviet-Manchukuoan Border Disputes." The core tenet: "If Soviet troops transgress the Manchukuoan frontiers, Kwantung Army will nip their ambitions in the bud by completely destroying them." Specific directives for local commanders included: "If the enemy crosses the frontiers … annihilate him without delay, employing strength carefully built up beforehand. To accomplish our mission, it is permissible to enter Soviet territory, or to trap or lure Soviet troops into Manchukuoan territory and allow them to remain there for some time… . Where boundary lines are not clearly defined, area defense commanders will, upon their own initiative, establish boundaries and indicate them to the forward elements… . In the event of an armed clash, fight until victory is won, regardless of relative strengths or of the location of the boundaries. If the enemy violates the borders, friendly units must challenge him courageously and endeavor to triumph in their zone of action without concerning themselves about the consequences, which will be the responsibility of higher headquarters." Major Tsuji Masanobu later justified the new guidelines by pointing to the "contradictory orders" that had hamstrung frontier commanders under the old rules. They were tasked with upholding Manchukuo's territorial integrity yet forbidden from actions that might spark conflict. This, Tsuji argued, bred hesitation, as officers feared repercussions for decisive responses to incursions. The updated directives aimed to alleviate this "anxiety," empowering local leaders to act boldly without personal liability. In truth, Tsuji's "Principles for the Settlement of Soviet-Manchukuoan Border Disputes" were more incendiary than conciliatory. They introduced provocative measures: authorizing commanders to unilaterally define unclear boundaries, enforce them with immediate force "shoot first, ask questions later", permit pursuits into enemy territory, and even encourage luring adversaries across the line. Such tactics flouted both government policy and official army doctrine, prioritizing escalation over restraint. The proposals sparked intense debate within Kwantung Army's Operations Section. Section chief Colonel Takushiro Hattori and Colonel Masao Terada outranked Tsuji, as did Major Takeharu Shimanuki, all recent transfers from the Army General Staff. Tsuji, however, boasted longer tenure at Kwantung Army Headquarters since April 1936 and in Operations since November 1937, making him the de facto veteran. Hattori and Terada hesitated to challenge the assertive major, whose reputation for intellect, persuasion, and deep knowledge of Manchuria commanded respect. In a 1960 interview, Shimanuki recalled Tsuji's dominance in discussions, where his proactive ideas often swayed the group. Unified, the section forwarded Tsuji's plan to Kwantung Army Command. Commander Lieutenant General Kenkichi Ueda consulted Chief of Staff General Rensuke Isogai and Vice Chief General Otozaburo Yano, seasoned leaders who should have spotted the guidelines' volatility. Yet, lingering grudges from AGS "interference" in past incidents like the Amur River and Changkufeng clouded their judgment. Ueda, Isogai, and Tsuji shared history from the 1932 Shanghai Incident: Tsuji, then a captain, led a company in the 7th Regiment under Colonel Isogai, with Yano as staff officer and Ueda commanding the 9th Division. Tsuji was wounded there, forging bonds of camaraderie. This "clique," which grew to include Hattori, Terada, and Shimanuki, amplified Tsuji's influence. Despite Isogai's initial reservations as the group's moderate voice, the guidelines won approval. Ueda issued them as Kwantung Army Operations Order 1488 on April 25, 1939, during a division commanders' conference at KwAHQ. A routine copy reached AGS in Tokyo, but no formal reply came. Preoccupied with the China War and alliance talks with Germany, AGS may have overlooked border matters. Colonel Masazumi Inada, AGS Operations head, later noted basic acceptance of Order 1488, with an informal expectation—relayed to Hattori and Terada—of prior consultation on violations. KwAHQ dismissed this as another Tokyo intrusion on their autonomy. Some Japanese analysts contend a stern AGS rejection might have prevented Nomonhan's catastrophe, though quelling Kwantung's defiance could have required mass staff reassignments, a disruptive step AGS avoided. Tsuji countered that permitting forceful action at Changkufeng would have deterred Nomonhan altogether, underscoring the interconnectedness of these clashes while implicitly critiquing the 1939 battle's location. Undeniably, Order 1488's issuance on April 25 paved the way for conflict three weeks later. Japanese records confirm that Khalkha Mongols and MPR patrols routinely crossed the Halha River—viewed by them as internal territory, 10 miles from the true border. Such crossings passed uneventfully in March and April 1939. Post-Order 1488, however, 23rd Division commander General Michitaro Komatsubara responded aggressively, setting the stage for escalation. The Nomonhan Incident ignited with a border clash on May 11–12, 1939, that rapidly spiraled into a major conflict. Over a dozen "authoritative" accounts exist, varying in viewpoint, focus, and specifics. After cross-referencing these sources, a coherent timeline emerges. On the night of May 10–11, a 20-man Mongolian People's Republic border patrol crossed eastward over the Halha River (known as Khalkhin Gol to Mongols and Soviets). About 10 miles east, atop a 150-foot sandy hill, lay the tiny hamlet of Nomonhan, a cluster of crude huts housing a few Mongol families. Just south flowed the Holsten River, merging westward into the broader Halha. By morning on May 11, Manchukuoan forces spotted the MPR patrol north of the Holsten and west of Nomonhan. In the MPR/Soviet perspective, Nomonhan Hill marked the Mongolia-Manchuria border. To Manchukuoans and Japanese, it sat 10 miles inside Manchukuo, well east of the Halha. A 40-man Manchukuoan cavalry unit repelled the Mongolians back across the river, inflicting initial casualties on both sides—the Manchukuoans drawing first blood. The MPR patrol leader exaggerated the attackers as 200 strong. The next day, May 12, a 60-man MPR force under Major P. Chogdan evicted the Manchukuoans from the disputed zone, reestablishing positions between the Halha and Nomonhan. The Manchukuoans, in turn, reported facing 700 enemies. Sporadic skirmishes and maneuvering persisted through the week. On May 13, two days post-clash, the local Manchukuoan commander alerted General Michitaro Komatsubara's 23rd Division headquarters in Hailar. Simultaneously, Major Chogdan reported to Soviet military command in Ulaanbaatar, Mongolia's capital. What began as a Mongolian-Manchukuoan spat was poised to draw in Soviet and Japanese patrons. Attributing the May 10–11 violation hinges on border interpretations: both sides claimed the Halha-Nomonhan strip. Yet, most accounts concur that Manchukuoan forces initiated the fighting. Post-May 13 notifications to Moscow and Tokyo clarify the record thereafter. Midday on May 13, Komatsubara was leading a staff conference on the newly issued Kwantung Army Operations Order 1488—Major Tsuji Masanobu's aggressive border guidelines. Ironically, the first Nomonhan combat report arrived mid-discussion. Officers present recall Komatsubara deciding instantly to "destroy the invading Outer Mongolian forces" per Order 1488. That afternoon, he informed Kwantung Army Headquarters of the incident and his intent to eradicate the intruders, requesting air support and trucks. General Kenkichi Ueda, Kwantung commander, approved Komatsubara's "positive attitude," dispatching six scout planes, 40 fighters, 10 light bombers, two anti-aircraft batteries, and two motorized transport companies. Ueda added a caveat: exercise "extreme caution" to prevent escalation—a paradoxical blend of destruction and restraint, reflective of KwAHQ's fervent mood. Ueda relayed the details to Tokyo's Army General Staff, which responded that Kwantung should handle it "appropriately." Despite Kwantung's impulsive reputation, Tokyo deferred, perhaps trusting the northern strategic imbalance, eight Japanese divisions versus 30 Soviet ones from Lake Baikal to Vladivostok, would enforce prudence. This faith proved misguided. On May 14, Major Tsuji flew from KwAHQ for aerial reconnaissance over Nomonhan, spotting 20 horses but no troops. Upon landing, a fresh bullet hole in his plane confirmed lingering MPR presence east of the Halha. Tsuji briefed 23rd Division staff and reported to Ueda that the incident seemed minor. Aligning with Order 1488's spirit, Komatsubara deployed a force under Lieutenant Colonel Yaozo Azuma: an armored car company, two infantry companies, and a cavalry troop. Arriving at Nomonhan on May 15, Azuma learned most MPR forces had retreated westward across the Halha the prior night, with only token elements remaining, and those withdrawing. Undeterred, he pursued. The advance met scant resistance, as foes had crossed the river. However, Japanese light bombers struck a small MPR concentration on the west bank, Outpost Number 7, killing two and wounding 15 per MPR reports; Japanese claimed 30–40 kills. All agree: the raid targeted undisputed MPR territory. Hearing of May 15's events, Komatsubara deemed the Mongolians sufficiently rebuked and recalled Azuma to Hailar on May 16. KwAHQ concurred, closing the matter. Soviet leaders, however, saw it differently. Mid-May prompted Soviet support for the MPR under their 1936 Mutual Defense Pact. The Red Army's 57th Corps, stationed in Mongolia, faced initial disarray: Commander Nikolai Feklenko was hunting, Chief of Staff A. M. Kushchev in Ulan Ude with his ill wife. Moscow learned of clashes via international press from Japanese sources, sparking Chief of Staff Boris Shaposhnikov's furious inquiry. Feklenko and Kushchev rushed back to Ulaanbaatar, dispatching a mixed force—a battalion from the 149th Infantry Regiment (36th Division), plus light armor and artillery from the 11th Tank Brigade—to Tamsag Bulak, 80 miles west of the Halha. Led by Major A. E. Bykov, it bolstered the MPR's 6th Cavalry Division. Bykov and Cavalry Commander Colonel Shoaaiibuu inspected the site on May 15, post-Azum's departure. The cavalry arrived two days later, backed by Bykov (ordered to remain west of the river and avoid combat if possible). Some MPR troops recrossed, occupying the disputed zone. Clashes with Manchukuoan cavalry resumed and intensified. Notified of renewed hostilities, Komatsubara viewed it as defiance, a personal affront. Emboldened by Order 1488, he aimed not just to repel but to encircle and annihilate. The incident was on the verge of major expansion. I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me. The ghosts of the Changufeng incident have come back to haunt both the USSR and Japan. Those like Tsuji Masanobu instigated yet another border clash that would erupt into a full blown battle that would set a precedent for both nations until the very end of WW2.