What was the primary reason for U.S. involvement in the Vietnam War? To colonize Vietnam To support French colonial interests To stop the spread of communism To gain access to natural resources None Which major 1968 event shifted American public opinion against the Vietnam War? The Gulf of Tonkin Incident The Tet Offensive The Bombing of Pearl Harbor The Death of Stalin None Who was the leader of North Vietnam during the Vietnam War? Ngo Dinh Diem Vo Nguyen Giap Ho Chi Minh Pham Van Dong None What was the name of the agreement that officially ended U.S. involvement in the Vietnam War? The Concord of Calm Paris Peace Accords The Alliance of Mutual Respect The Pact of Harmonious Cooperation None Which Cold War strategy did the U.S. employ to justify its involvement in the Vietnam War? Containment Detente Rollback Appeasement None Time's up