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
Joint warfare in South Vietnam, 1963–1969 the Politburo. Unknown to the U.S., their greatest fear was a major ground operation to cut the trail, which, indeed, would have meant entering Laos and Cambodia. Dong Sy Nguyen, the North Vietnamese general running trail operations, was less concerned with bombing than What worries me most is that they will send in troops or use choppers to send some commandos or drop paratroopers, who would then occupy a chunk of the trail. This would throw the entire complicated system out of whack. North Vietnam received foreign military aid shipments through its ports and rail system. This materiel (and PAVN