Zhejiang-Jiangxi campaign

Zhejiang-Jiangxi campaign
	Part of the Second Sino-Japanese War, the China Burma India Theater and the Pacific Theater of World War II
	; A Japanese soldier with 50 mm heavy grenade discharger during the Zhejiang-Jiangxi Campaign, 30 May 1942
Date	May 15 – September 4, 1942; (3 months, 2 weeks and 6 days)
Location	Vicinity of Zhejiang province and Jiangxi province in the Republic of China
Result	Japanese victory
Belligerents
China; United States	Japan
Commanders and leaders
Gu Zhutong; Shangguan Yunxiang; Tang Shih-Tsun; Wang Jingjiu; Li Jue; Xue Yue; Ou Zhen; Shi Zhongcheng; Wang Yaowu; Xia Chuzhong; Sun Du; Feng Sheng-Fa; Ding Zhipan; Wang Tieh-Han; Chang Wen-Ching; Tao Kuang; Liu Yu-Ching; Fan Tse-Ying; Mo Yu-Shuo	Shunroku Hata; Shigeru Sawada; Korechika Anami; Sanji Ōkido; Tetsuzo Ide; Takayuki Uchida; Toshijiro Takeuchi; Johkichi Nanbu; Haruo Yamamura; Hachiro Tagami; Tagaji Takahashi; Shigeru Ōga; Saburo Takehara; Takejiro Imai; Tokutaro Ide; Giichi Hirano; Naotsugu Sakai †
Units involved
Republic of China Army	Imperial Japanese Army; Unit 731
Strength
22,099 officers and 290,209 soldiers	180,000
Casualties and losses
Chinese records:; 724 officers and 23,637 soldiers killed; 914 officers and 24,366 soldiers wounded; 600 officers and 18,040 soldiers missing; ; Western estimate: 30,000 killed or wounded; ; Japanese claim:; 13th Army's claim:; 24,430 killed; 8,564 POWs; ; 11th Army's claim:; 15,758 killed; 2,283 POWs	Chinese claim: 36,869 killed or wounded; ; Japanese records:; 13th Army:; 1,284 killed; 2,767 wounded; 11,812 fallen ill; ; 11th Army:; 336 killed; 949 wounded
	As many as 250,000 Chinese civilians killed

The Zhejiang-Jiangxi campaign or the Chekiang–Kiangsi campaign (Japanese: 浙贛作戦, simplified Chinese: 浙赣战役; traditional Chinese: 浙赣戰役; pinyin: Zhè-Gàn Zhànyì), also known as Operation Sei-go (Japanese: せ号作戦), was a campaign by the China Expeditionary Army of the Imperial Japanese Army under Shunroku Hata and Chinese 3rd War Area forces under Gu Zhutong in Chinese provinces of Zhejiang and Jiangxi from mid May to early September 1942.

Hata's forces launched the campaign in retaliation for the Doolittle Raid, conducted by American pilots who had then landed in China's Zhejiang and Jiangxi provinces. Besides seizing local airfields, Japanese troops launched massive reprisal campaigns against the local population by "slaughtering every man and child." As many as 250,000 Chinese died in the Japanese reprisals, the majority civilians.