Senior leadership of the Communist Party of Kampuchea (CPK), including Pol Pot, Nuon Chea, Ieng Sary, Son Sen, and others, photographed during the period of Democratic Kampuchea (1975–1979). As the vanguard party of the Kampuchean revolution, the CPK led the overthrow of the U.S.-backed Lon Nol regime and established a workers’ and peasants’ state committed to building socialism along an independent, anti-revisionist line.