Vietnam War remained in the field for four days. Tellingly, South Vietnamese forces were again defeated in June 1965 at the Battle of Đồng Xoài. On 8 March 1965, 3,500 U.S. Marines were unilaterally dispatched to South Vietnam. This marked the beginning of the American ground war. U.S. public opinion overwhelmingly supported the deployment. The Marines' initial assignment was defensive. The first deployment of 3,500 in March 1965 was increased to nearly 200,000 by December. The U.S. military had long been schooled in offensive warfare. Regardless of political policies, U.S. commanders were institutionally and psychologically unsuited to a defensive mission. General William
CIA activities in Vietnam the military and diplomats, and Lansdale was no longer involved with Vietnam. On May 11, 1961, President Kennedy gave the authorization to begin "a program for covert actions to be carried out by the Central Intelligence Agency which would precede and remain in force after any commitment of US forces to South Vietnam." Kennedy was giving the CIA the job of preparing for the eventual landing of US troops. Later that year, in October 1961 the Director of Central Intelligence Allen Dulles approved a massive counterinsurgency program with the goal of launching a "village defense program in the lightly populated