SAT Subject US History Practice Question 819: Answer and Explanation
80. The United States became politically involved in Vietnam immediately after
A. France was defeated by the Vietminh.
B. China threatened Taiwan.
C. Great Britain partitioned India.
D. North Korea attacked South Korea.
E. Japan relinquished its control over Vietnam following World War II.
Correct Answer: A
The United States became involved in Vietnam with the installation of Ngo Dinh Diem as a puppet leader of South Vietnam after the French military defeat at Dien Bien Phu by the Vietminh in 1954. The relationship between China and Taiwan (B), the partitioning of India in 1947 (C), and the invasion of South Korea by North Korea in 1950 (D) did not cause the United States to become politically involved in Vietnam. Japan controlled Vietnam during World War II. After World War II, France reasserted its power in Vietnam (E).