William Westmoreland until 1968, then Creighton Abrams until 1972, then Frederick C. Weyand until US ground operations ended in 1973.
General Westmoreland
US Army General Paul Harkins.
Westmoreland then Abrams.
US Army Chief of Staff and US Ambassador to South Vietnam.
US Army Generals chronologically were: Paul Harkins, William Westmoreland, and Creighton Abrams.
Answer Both British 8th Army lead by General Montgomery and the US 7th Army led by General George Patton.
US Army General William Westmoreland (1914-2005) was a WWII veteran, who commanded US Troops in Vietnam from 1964 until 1969.
Grant commanded the Northern army during the US Civil War. Giap commanded the Northern army during the Vietnam War.
Nixon, Kissinger, anyone not from that nation.
Douglas McArthur
US Army General Abrams, commander of US forces in Vietnam, and name sake of the current M1 Abrams tank. Any general from 1945 to 1990 (or 1991) was a cold war general.
General Hodges was honored to be appointed to command the US Third Army in Europe. His handicap was that General Kruger took most of the best officers of the Third Army to join him in the new Sixth Army.