Vietnam ground combat operations in 1965, and at their peak they numbered more than 500,000. The US also engaged in a sustained aerial bombing campaign. Meanwhile, China and the Soviet Union provided North Vietnam with significant material aid and 15,000 combat advisers. Communist forces supplying the Việt Cộng carried supplies along the Hồ Chí Minh trail, which passed through the Kingdom of Laos. The communists attacked South Vietnamese targets during the 1968 Tết Offensive. Although the campaign failed militarily, it shocked the American establishment, and turned US public opinion against the war. During the offensive, communist troops massacred over 3,000 civilians
1961 in the Vietnam War The NSAM also called for South Vietnam to improve its military establishment and mobilize its resources to prosecute the war. Thus, Kennedy stopped short of what many of his advisers, including General Taylor, had advised: the introduction of U.S. combat soldiers into South Vietnam. Kennedy's decision not to introduce combat troops surprised the Defense Department which had been assembling forces to be assigned to Vietnam, including Farm Gate aircraft. However, Kennedy's decision was a visible and undeniable violation of the Geneva Accords of 1954, still technically in force. President Kennedy approved the use of herbicides in Viet Nam to kill