People's war or protracted people's war is a Maoist military strategy. First developed by the Chinese communist revolutionary leader Mao Zedong (1893–1976), the basic concept behind people's war is to maintain the support of the population and draw the enemy deep into the countryside where the population will bleed them dry through guerrilla warfare and eventually build up to mobile warfare. It was used by the Chinese communists against the Imperial Japanese Army in World War II, and by the Chinese Soviet Republic in the Chinese Civil War.

Maoism, also known as Mao Zedong Thought, is a variety of Marxism–Leninism that Mao Zedong developed while trying to realize a socialist revolution in the agricultural, pre-industrial society of the Republic of China and later the People's Republic of China. A difference between Maoism and traditional Marxism–Leninism is that a united front of progressive forces in class society would lead the revolutionary vanguard in pre-industrial societies rather than communist revolutionaries alone. This theory, in which revolutionary praxis is primary and ideological orthodoxy is secondary, represents urban Marxism–Leninism adapted to pre-industrial China. Later theoreticians expanded on the idea that Mao had adapted Marxism–Leninism to Chinese conditions, arguing that he had in fact updated it fundamentally and that Maoism could be applied universally throughout the world. This ideology is often referred to as Marxism–Leninism–Maoism to distinguish it from the original ideas of Mao.