The war in Vietnam complicated politics in Cambodia, and a civil war ensued.
Khmer Rouge took over Cambodia and persecuted political enemies.
Educated Cambodians attempted a government takeover from Khmer Rouge.
Massacres increased because reeducation camps were failing.
The Cambodian Genocide, which took place between 1975 and 1979, was a result of a number of factors, including the Khmer Rouge's ideology, the country's recent history, and Cold war