Communist who was the last Head of the State of the Khmer Republic during the 1970s.
He reached the rank of Minister of Defence at age 29.
He lived the end of his life exiled in the United States after hisregime overthrown by the Khmer Rouge in 1975.
He and his wife had four children.
He was deposed by General Lon Nol in the Cambodian Coup of 1970.