Last time we spoke about the battle of West Suiyuan. The Ma Clique, Muslim warlords controlling Northwest China, led by Ma Hongkui and Ma Hongbin, rebuffed Japanese overtures to ally, citing historical grievances like the 1900 invasion. Driven by patriotism, they aligned with the Nationalists, reorganizing forces into the 17th Army Group. In 1938, Ma Hongbin commanded West Suiyuan defenses, building fortifications in harsh desert and mountain terrain, blending cavalry tactics with modern training despite equipment shortages. In January 1940, Japanese and puppet troops advanced from Baotou, occupying Wuyuan and Linhe. Chinese forces, including Fu Zuoyi's 35th Army and Ma's 81st Army, employed guerrilla and mobile warfare. A major counterattack in March recaptured Wuyuan, killing Lt. Gen. Mizukawa and thousands, forcing Japanese retreat. Through ambushes and night raids, the Chinese recovered territories, securing Soviet aid routes and the Shaanxi-Gansu-Ningxia region. Over 2,000 Ningxia soldiers perished, their sacrifices underscoring peripheral fronts' role in national resistance.

#200 The battle of Yaoyi

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. After capturing Wuhan, the Japanese army had already stretched itself dangerously thin. Most regular and Class A reserve divisions were committed to the front, yet they failed to annihilate the main Chinese force. Despite losing its core industrial and resource regions, the Nationalist government in Chongqing refused Japan's peace terms. Japan now found itself trapped in the very protracted war it had desperately sought to avoid.

The logical Japanese response was to halt major advances, consolidate control over occupied areas, and conduct limited offensives to pressure Chiang Kai-shek into negotiations—essentially repeating the post-Nanjing strategy of late 1937. But the situation had deteriorated sharply: occupied territory had at least doubled, Japanese garrisons were inadequate, and strategic reserves were nearly exhausted. What might have been prudent a year earlier had become plainly unwise by late 1938.

To stabilize the front, Japan reorganized its China Expeditionary Army at the end of 1938. Large numbers of newly raised independent mixed brigades and lower-quality Class B reserve divisions were sent to relieve veteran regular and Class A divisions. The relieved units were either demobilized back to Japan or shifted north to reinforce the Kwantung Army against the Soviet threat.

By early 1940 Japan maintained roughly 24 divisions, 21 independent mixed brigades, and 2 cavalry brigades in China proper (excluding Manchuria), totaling nearly 800,000 ground troops. The enormous scale and expense strained the home economy severely. Even so, the vast occupied zones could not be effectively controlled: divisions often held only a single mobile battalion while dispersing the rest into scattered platoon- and squad-sized outposts. Guerrilla activity by both Nationalist and Communist forces not only persisted but intensified, occasionally clashing with each other in "friction" incidents.

Beyond mere occupation, Japan sought to wear down Chinese strength. With most elite Central Army units held in reserve in the southwest or around Wuhan, Japanese local offensives targeted the Fifth and Ninth War Zones, aiming to methodically destroy Chiang's best troops.

Thus, while other Japanese armies focused on garrison relief and brigade substitution, the 11th Army—still holding Wuhan with seven divisions and three brigades—remained the main offensive instrument. In 1939 it captured Nanchang, then mounted major operations against the Fifth War Zone (Suizao Campaign) and Ninth War Zone (First Battle of Changsha). Except for the seizure of Nanchang, however, these offensives inflicted only limited and temporary damage on Chinese forces.

Japan's domestic economy was in even worse shape. In early 1937, it had approved a massive 2.4 billion yen naval and army rebuilding program aimed at countering the United States and Russia, but implementation had barely started when the Sino-Japanese War erupted. The conflict generated enormous war costs while military expansion continued unabated, rapidly draining the Bank of Japan's gold reserves. By the end of 1938, those reserves (valued at just 1.35 billion yen) had shrunk by more than two-thirds. To fund the Battle of Wuhan that year, Japan postponed key elements of the rebuilding plan. After Wuhan fell, the Army revised its wartime reorganization: the original target of forty divisions grew to fifty-five by early 1938, then to sixty-five divisions plus 164 Army Air Force squadrons by 1942. The funding required to equip and stockpile for this expansion escalated steadily; the 1939 expansion budget alone demanded 1.8 billion yen, pushing Japanese finances to the breaking point.

Japan repeatedly sought a way out of China, but its peace terms remained far beyond what Chongqing would accept, leaving negotiations stalled. Efforts to install puppet regimes in North and Central China—culminating in the Wang Jingwei government in 1940—aimed to "use Chinese to control Chinese" and undermine Nationalist influence, yet produced disappointing results.

The 11th Army's 1939 campaigns yielded only mediocre outcomes, hampered by chronic troop shortages. Even its divisions were tied down in occupation duties; mounting a serious offensive required pulling garrison forces, leaving no reserves to hold the line unless new units arrived. Sustained large-scale operations to seriously weaken Chinese strength demanded a major troop increase—otherwise, Japan was limited to shallow, localized attacks.

Lt. Gen. Yasuji Okamura, commanding the 11th Army, recognized this clearly. In a December 1939 report, he argued that diplomacy and small offensives were futile and urged a large-scale operation backed by substantial reinforcements. His superiors, however, were preoccupied with funding the broader military buildup and could offer no extra men. The post-Wuhan "defensiveization" of operations was largely a cost-saving measure to support that expansion.

Japanese ground strength in China, which peaked near 850,000 after Wuhan, had already dropped by about 50,000. Full-strength regular or Class A divisions numbered roughly 22,000 men (four regiments), while newer garrison divisions had only about 15,000 (three regiments), and independent mixed brigades just 6,000. Okamura's proposal was sensible but politically impossible; high command was even contemplating slashing China troop levels to 400,000.

The Chinese Winter Offensive of December 1939, together with counterattacks at Nanning and Kunlun Pass, inflicted serious losses and exposed the limited damage done to Chinese forces in 1939 operations. The recapture of Wuyuan in March 1940 signaled the start of a new phase.

Shortly afterward, intensified Chinese guerrilla raids deep into Japanese rear areas prompted large Japanese "mop-up" operations in southern Shanxi, central Hubei, southern Jiangxi, and northern Hunan. In the Wuhan sector, repeated blows from the Winter Offensive heightened fears of Chinese forces in the Dahong and Tongbai Mountains, which threatened control over the vital Jianghan Plains rice-producing region. In mid-April 1940, the Japanese abandoned outposts at Macheng (eastern Hubei), Fengxin, and Jing'an (northern Jiangxi), withdrew elements of the 6th Division (northern Hunan), 40th Division (northern Jiangxi), and the 3rd, 13th, and 39th Divisions (Hubei), and concentrated them around Zhongxiang, Suixian, and Xinyang for a maximum-effort push.

These setbacks finally forced Tokyo to abandon deep troop reductions in China and approve reinforcements of two regular divisions for a major 1940 offensive. The revised end-1940 target becam...