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3. The U.S.-backed leader of South Vietnam until 1963 was Ngo Dinh Diem. He was supported by the United States as a key figure in the fight against communism during the Vietnam War. However, his leadership faced challenges and criticisms, eventually leading to his assassination in a coup in 1963.
4. The international agreement that split North Vietnam and South Vietnam was the Geneva Accords of 1954. This agreement was reached after the First Indochina War and aimed to temporarily divide Vietnam along the 17th parallel, with the intention of holding nationwide elections in 1956 to reunify the country. However, these elections were never held, leading to the permanent division of North and South Vietnam.
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