The Third Indochina War was a series of interconnected military conflicts among the various communist factions over strategic influence in mainland Southeast Asia after communist victory in South Viet
The Khmer Rouge killed between 1.6 and 2.8 million Cambodians during the Cambodian Genocide. The Khmer Rouge also invaded Ba Chúc, Vietnam, and massacred 3,157 Vietnamese civilians, which prompted Vietnam to invade Cambodia and overthrow the regime.