The Wat Thmey of Killing Fields are a number of sites in Cambodia where collectively more than one million people were killed and buried by the Khmer Rouge regime (the Communist Party of Kampuchea) during its rule of the country from 1975 to 1979, immediately after the end of the Cambodian Civil War (1970–1975). The mass killings were part of a broad state-sponsored genocide (the Cambodian Genocide)