The Cambodian genocide was caused by Khmer Rouge party leader Pol Pot's attempt to eliminate anyone potentially opposed to his proposed system of labor in a federation of collective farms, according to World Without Genocide. Pol Pot's project was inspired by Maoist-Communist ideals.
World Without Genocide states that potential opponents of the Maoist-Communist system were thought to include anyone who was educated or an intellectual as well as professionals, monks and ethnic minorities. The religious, whether Buddhist, Christian or Muslim, were also thought of as potential opponents. Because Pol Pot's vision of Cambodia necessitated the ability of citizens to work, mass numbers of the elderly, disabled and ill were among the casualties of the Cambodian genocide.