The Communist Party of Kampuchea (CPK), otherwise known as the Khmer Rouge, took control of Cambodia on April 17, 1975. The CPK created the state of Democratic Kampuchea in 1976 and ruled the country until January 1979. The party’s existence was kept secret until 1977, and no one outside the CPK knew who its leaders were (the leaders called themselves “Angkar Padevat”). While the Khmer Rouge was in power, they set up policies that disregarded human life and produced repression and massacres on a massive scale. They turned the country into a huge detention center, which later became a graveyard...