Nguyen Van Thieu was a South Vietnamese politician and military officer who served as the President of the Republic of Vietnam from 1967 until the fall of Saigon in 1975. He was born on April 1, 1927, in Binh Dinh Province, Vietnam. Thieu played a significant role in the Vietnam War, leading South Vietnam during a critical period of conflict against the communist forces of North Vietnam. Thieu's presidency was marked by political instability and challenges in governance, as well as efforts to strengthen the military and economy of South Vietnam. He eventually fled to Taiwan in April 1975 as North Vietnamese forces captured Saigon, leading to the reunification of Vietnam under communist control.