USA HISTORY

Detailed explanation-1: -The US justified its military intervention in Vietnam by the domino theory, which stated that if one country fell under the influence of Communism, the surrounding countries would inevitably follow. The aim was to prevent Communist domination of South-East Asia.

Detailed explanation-2: -Many Americans opposed the war on moral grounds, appalled by the devastation and violence of the war. Others claimed the conflict was a war against Vietnamese independence, or an intervention in a foreign civil war; others opposed it because they felt it lacked clear objectives and appeared to be unwinnable.

Detailed explanation-3: -They marched by the thousands, on campuses from coast to coast. At different times they chose different targets: the Pentagon, Presidents Nixon and Johnson, the draft, Dow Chemical. But the students all acted from a common belief that the Vietnam War was wrong.

Detailed explanation-4: -Antiwar marches and other protests, such as the ones organized by Students for a Democratic Society (SDS), attracted a widening base of support over the next several years, peaking in early 1968 after the successful Tet Offensive by North Vietnamese troops proved that war’s end was nowhere in sight.