William Childs Westmoreland (26 March 1914 – 18 July 2005) was a United States Army general, most notably the commander of United States forces during the Vietnam War from 1964 to 1968. He served as Chief of Staff of the United States Army from 1968 to 1972.
In Vietnam, Westmoreland adopted a strategy of attrition against the Viet Cong and the North Vietnamese People's Army of Vietnam, to drain them of manpower and supplies. He also made use of the United States' superiority in artillery and air power, employed in tactical confrontations and in relentless strategic bombing of North Vietnam. As time went on and success was not gained, public support for the war diminished, especially after the Battle of Khe Sanh and the Tet Offensive in 1968. When he was reassigned as Army Chief of Staff, American military forces in Vietnam had reached a peak of 535,000 personnel.
Westmoreland's strategy was ultimately politically and militarily unsuccessful. This was due to growing American casualties and reliance on conscription to increase the number of American troops.