Hundred Regiments Offensive

Victorious Chinese Communist soldiers holding the flag of the Republic of China.

Date	20 August–5 December 1940
Location	North China
Result	Chinese victory

Belligerents

China

Communist Party of China

Empire of Japan

Reorganized National Government

Commanders and leaders

Peng Dehuai
Zhu De

Hayao Tada

Units involved

8th Route Army

North China Area Army
Collaborationist Chinese Army

Strength

400,000

270,000 Japanese troops and 150,000 Chinese collaborators

Casualties and losses

22,000

Several record from different sources 1. Chinese Communist has two records: the first one is 12,645 killed and wounded, 281 POW. The second record: 20,645 killed and wounded, 281 POW
2. Japanese military record: No figure about total casualties, 276 KIAs from 4th Independent Mixed Brigade. 133 KIA and 31 MIA from 2nd Independent Mixed Brigade.
3. Western sources: 20,900 Japanese casualties and about 20,000 collaborator casualties

4. Peng's estimate: 30,000 Japanese and collaborators

China

The Hundred Regiments Offensive (Chinese: 百團大戰) (20 August – 5 December 1940) was a major campaign of the Communist Party of China's National Revolutionary Army divisions commanded by Peng Dehuai against the Imperial Japanese Army in Central China. The battle had long been the focus of propaganda in the history of Chinese Communist Party but had become Peng Dehuai's "crime" during the Cultural Revolution. Certain issues regarding its launching and consequences are still controversial.

In 1939–1940, the Japanese launched more than 109 small campaigns involving around 1,000 combatants each and 10 large campaigns of 10,000 men each to wipe out Communist guerrillas in the Hebei and Shandong plains. In addition, the army of Wang Jingwei's collaborationist Reorganized National Government had its offensive against the CCP guerrillas.

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