- Location
- Democratic Kampuchea
- Date
- 17 April 1975 – 7 January 1979 (3 years, 8 months and 20 days), cultural genocide , starvation , forced labour , torture , mass rape , summary execution
- Target
- Cambodia's previous military and political leadership, middle-class professionals, businesspeople, intellectuals and ethnic, linguistic, and religious minorities
- Deaths
- 1.2–2.2 million
- Perpetrators
- Khmer Rouge , Kampuchea Revolutionary Army , Santebal , Communist Party of Kampuchea
- Motive
- Establishment of an agrarian socialist society based on Maoist principles Cultural reset ( Year Zero ) Khmer nationalism and racism Xenophobia Anti-Western sentiment Anti-intellectualism Anti-religious sentiment