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Nguyen Van Thieu was the President of South Vietnam from 1965 to 1975. He resigned days before Saigon fell, and the communists won the war.
He died of natural causes at the age of 78.
Nguyen Van Thieu
Nguyen Van Thieu was a General.
Ngô Đình Diệm Jean Baptiste
Correction:
Nguyn Vn Thiu should spell Nguyen Van Thieu. He was replaced by Tran Van Huong not by Ngo Dinh Diem. Ngo Dinh Diem was replaced by Nguyen Van Thieu.