Alright,then Vietnam had Imperial Ambitions to invade & occupy Cambodia (even Thailand) in an attempt for annexation,while opening fire to Cambodian People,for conquest of South East Asia.
Vietnam tried to take over Cambodia, & although VN succeeded militarily...it didn't worked
Vietnam’s invasion of Cambodia is obvious, and only an idiot like you would be brainwashed into thinking it was humanitarian. What’s humanitarian about entering Cambodia, opening fire on Cambodians, and being driven out by them for ten long years?