Suiyuan campaign

Suiyuan campaign
	Part of the Inner Mongolian Campaign, the Second Sino-Japanese War and the Interwar period
	; Chinese field gun crew at Bailingmiao
Date	October – 19 December 1936
Location	Suiyuan province, Inner Mongolia
Result	Chinese victory
Belligerents
Republic of China	Inner Mongolia; Great Han Army; Supported by:; Empire of Japan; Manchukuo
Commanders and leaders
Fu Zuoyi; Tang Enbo; Li Fuying; Zhao Chengshou; Wang Jingguo	Demchugdongrub; Li Shouxin; Bao Yueqing; Wang Ying; Ryūkichi Tanaka
Units involved
35th Army; 19th Army; Anti-aircraft battalion; Cavalry army; Reserve army;	Inner Mongolian Army; Great Han Army;
Strength
45,000 men	10,000 men; 6,000 men; ~30 advisers, motor vehicles, and 28 aircraft; Total: ~16,000 men
Casualties and losses
Unknown (300+ casualties in the capture of Bailing Temple)	300–900 Inner Mongolians killed, 300 wounded, and 300 captured; Most of Wang Ying's forces eliminated; At least 1 Japanese adviser killed, 4 planes destroyed

The Suiyuan campaign (Chinese: 綏遠抗戰; pinyin: Suīyuǎn kàngzhàn; Japanese: 綏遠事件, romanized: Suien jiken) was an attempt by the Inner Mongolian Army and Grand Han Righteous Army, two forces founded and supported by the Empire of Japan, to take control of the Suiyuan province from the Republic of China. The attempted invasion occurred in 1936, shortly before the Second Sino-Japanese War. The Japanese government denied taking part in the operation, but the Inner Mongolians and the other collaborationist Chinese troops received air support from Japanese planes and were assisted by the Imperial Japanese Army. The entire operation was overseen by Japanese staff officers. The campaign was unsuccessful, mostly due to lack of training and low morale among the Mongolians and other collaborators. The defense of Suiyuan, one of the first major successes of China's National Revolutionary Army over Japanese-supported forces, greatly improved Chinese morale.