I Field Force, Vietnam

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I Field Force, Vietnam
I Field Force Vietnam shoulder sleeve insignia
Country United States of America
Branch United States Army
Part ofMilitary Assistance Command, Vietnam SSI.svg Military Assistance Command, Vietnam
HeadquartersNha Trang
EngagementsVietnam War
Distinctive Unit InsigniaUSA - 1 Field Force Vietnam DUI.png

I Field Force, Vietnam was a corps-level command of the United States Army during the Vietnam War. Activated on 15 March 1966, it was the successor to Task Force Alpha, a provisional corps command created 1 August 1965 (renamed Field Force Vietnam on 25 September) for temporary control of activities of U.S. Army ground combat units arriving in Vietnam.[1] I Field Force was a component of U.S. Military Assistance Command Vietnam (MACV) and had its headquarters at Nha Trang.

Area of Responsibility and Units Assigned[edit]

I Field Force Tactical Operations Center, Nha Trang, 13 July 1968

I Field Force's area of responsibility was II Corps Tactical Zone, later renamed Military Region 2, which comprised the twelve provinces of Vietnam's Central Highlands. Among the divisions and brigades it controlled were:


I Field Force was inactivated on 30 April 1971 during the withdrawal of U.S. ground combat forces from Vietnam, and its assets formed the basis for its successor, the Second Regional Assistance Command (SRAC).



  1. ^ Eckhardt, George. Vietnam Studies: Command and Control. Washington, DC: Department of the Army. pp. 53–54.
  2. ^ Association of I Field Force, IFFV Commanders


  • Eckhardt, George (1991). Vietnam Studies: Command and Control. Washington, D.C.: Department of the Army. OCLC 1030922. Archived from the original on 19 October 2017. Retrieved 14 June 2012.Public Domain This article incorporates text from this source, which is in the public domain.
  • Stanton, Shelby (1981). Vietnam Order of Battle. Washington, D.C.: U.S. News Books. ISBN 0-89193-700-5.