Khmer Rouge
ND – MPE: 1.6
White cites estimates for the number of people killed by Pol Pot’s regime in Cambodia from 1975 to 1979, which range from 0.4 to 3.3 million. Plausible estimates range from 1 to 2.2 million – up to one million killed directly. White and the Wikipedia-article “Cambodian genocide” cite a sophisticated analysis by Historian Ben Kiernan, who has calculated that 1.6 to 1.9 million people were killed by the Khmer Rouge. I choose 1.6 as the most plausible estimate.
The United States, Britain and West Germany supported Khmer Rouge resistance against the Vietnamese occupation with indirect military support and diplomacy at the UN.