The Khmer Rouge was a radical communist regime that ruled Cambodia from 1975 to 1979 under the leadership of Pol Pot. It aimed to create a socialist agrarian society and implemented brutal policies that led to the systematic extermination of an estimated 2.2 million people, including those associated with the former government, minority ethnic groups, and anyone perceived as a threat to their rule. The regime enforced harsh social engineering measures, forced relocations, and widespread executions, which occurred at sites infamously known as the Killing Fields.
In 1997, the Cambodian government sought justice for the genocide committed by the Khmer Rouge by requesting assistance from the United Nations to establish a tribunal. This tribunal aimed to prosecute the leaders of the Khmer Rouge who were responsible for the war crimes and crimes against humanity. The process took time, but in 2006, judges were sworn in, and they began investigating the surviving Khmer Rouge leaders and prosecuting them for their actions during the regime.