Trần Thiện Khiêm
During the 1960s he was involved in several coups d'état. He helped President Ngô Đình Diệm put down a coup attempt in November 1960. He was rewarded with promotion. In 1963 he was involved in the coup that deposed and assassinated Ngo Dinh Diem. From 1969 until 1975, he was the Prime Minister of South Vietnam.