Japanese and Vietnamese
Yes it was.
The communist takeover brought the genocide in Cambodia.
The genocide in Cambodia claimed about 1.7 million persons.
Pol Pot
Yes it is.
Khmer Rouge
they all had a big party with nachos
Communist inspired forces, along with other forms of "rebel" factions moved into Cambodia.
Many were sent to refugee camps on the Thai/Cambodia & Laos/Cambodia border.
Cambodia
The extermination of an entire race of people is called genocide.
The word for killing or trying to kill a race or ethnic group is genocide.