_______ was the beginning of American involvement in Vietnam.
A、Japanese surrender in 1945
B、The outbreak of the Korean War
C、The French invasion of Indochina
D、Truman's decision to send military aid to Vietnam to support the French
【正确答案】：D
【题目解析】：【考点点击】本题主要考查越南战争。
【要点透析】美国插手越南事务的开端为：杜鲁门决定向与越南作战的法国提供军事援助。P221
