VM VC During the First Indochina War the French used to call their opponents VM Viet Minh short for the League for Ind pendence of Viet Nam until the fall of Dien Bien Phu in 1954 Starting with the Ngo Dinh Diem Regime it s been VC for the opponents until the Fall of Saigon in 1975 It may be usual to downgrade and demonize opponents