You must log in or register to comment.
I think they are arguing that Vietnam "colonized" Cambodia (and Laos too I suppose) because they had troops and fought a war there? It basically just nonsense, especially because all three of those countries used to be 1 french colony of Indochina, and the Vietnamese Communist Party used to be the Indochinese Communist Party and quite regularly operated in Laos and Cambodia.
The Wikipedia article on this is surprisingly good and also says the Khmer Rouge started it.