The Hundred Regiments Offensive also known as the Hundred Regiments Campaign was a major campaign of the Chinese Communist Party's National Revolutionary Army divisions. It was 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.

Peng Dehuai was a Chinese general and China's Minister of National Defense from 1954 to 1959. Peng was born into a poor peasant family, and received several years of primary education before his family's poverty forced him to suspend his education at the age of ten, and to work for several years as a manual laborer. When he was sixteen, Peng became a professional soldier. Over the next ten years Peng served in the armies of several Hunan-based warlord armies, raising himself from the rank of private second class to major. In 1926, Peng's forces joined the Kuomintang, and Peng was first introduced to communism. Peng participated in the Northern Expedition, and supported Wang Jingwei's attempt to form a left-leaning Kuomintang government based in Wuhan. After Wang was defeated, Peng briefly rejoined Chiang Kai-shek's forces before joining the Chinese Communist Party (CCP), allying himself with Mao Zedong and Zhu De.