the III Marine Amphibious Force (III MAF). It consisted of both the 3d Marine Division and the 1st Marine Aircraft Wing (MAW). In midsummer 1965, in discussions with General Westmoreland, Secretary of Defense Robert S. McNamara agreed to deploy additional U.S. troops both Marine and Army to South Vietnam. In August 1965, the first elements of the 1st Marine Division arrived at Chu Lai eventually followed by the division headquarters.