Who was the chief commanding officer during the Vietnam War? U.S. History Modern America and Conflict Vietnam War 1 Answer FashionChick · David P Nov 29, 2016 General William Westmorland. Explanation: Answer link Related questions The most important reason why the USA withdrew from Vietnam was the Tet Offensive. How far do you agree? Why did Martin Luther King believe the Vietnam War was morally wrong? Was the Vietnam War an undeclared or declared war? What role did Australia play in the Vietnam War? Why did Americans support the Korean War but oppose the Vietnam War? Did the United States win or lose the Vietnam War? How did the United States become involved in the Vietnam War? What did the Tet Offensive show the American people? What U.S. wartime intelligence agency was assisted by the Vietminh? What was the role of the U.S. in the Vietnam Conflict? See all questions in Vietnam War Impact of this question 2935 views around the world You can reuse this answer Creative Commons License