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European Theater of Operations US Army (ETOUSA)


Headquarters European Theater of Operations US Army (ETOUSA) was established in London by General Order 3, ETOUSA on 8 June 1942. It succeeded Headquarters US Army in the British Isles (USAFBI), established in London by General Order 1, USAFBI, 8 January 1942.

Until the establishment of Supreme Headquarters Allied Expeditionary Force (SHAEF) on 13 February 1944, ETOUSA participated in operational planning for Allied invasion of western Europe. It performed administrative and service functions for U.S. Army troops, equipment, and facilities in the following areas:
-United Kingdom and Iceland 1942-45
-North Africa November 1942-February 1943
-Western Europe, 6 June 1944- 1 July 1945

ETOUSA's Headquarters moved from London to Valognes, France on 1 September 1944; and to Paris on 14 September 1944. It was redesignated HQ USFET, with main headquarters at Frankfurt, Germany, and rear headquarters at Paris, on 1 July 1945, by General Order 130, HQ ETOUSA, 20 June 1945.

Commanding officers
  • Dwight Eisenhower

    Military | General | Supreme Commander

  • Frank Andrews

    Military | General | Commander of all US forces in the European Theatre of Operations
    General George C. Marshall said late in life that there was only one general he had been able to "prepare all around" for the supreme command of the invasion of Europe, and his name was not, "Ike". ...

  • Jacob Devers

    Military | General
    4 star general in the US Army who commanded the 6th Army Group in the European Theatre during WW II. Involved in the development and adoption of numerous weapons, including the M4 Sherman and M26 Pershing tanks, the DUKW amphibious truck, the Bell H-13...

  • James Chaney

    Military | Major General | Special Army Observer, Theatre Commander
    James E Chaney was a Military Officer he served with the Army until 1917, when he was detailed to the US Air Service to act as Chief of Air Service for the American Expeditionary Force during the First World War. ...


Part of
Not yet known
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Previously was
  • United States Army Forces in the British Isles

    United States Army Forces in the British Isles

    General James E Chaney had been posted to the UK to act as a Special Observer during the Battle of Britain and the Blitz, he also oversaw preparations for the possible establishment and employment of US Ground and Air Forces in the UK in 1941. ...

Not yet known


Station Location Date
Based London 8 June 1942 – 1 September 1944



  • Richard Ham

    Military | Sergeant | Cinematographer, Combat Photographer | 303rd Bomb Group
    Dick studied photography at Modesto Junior College, California, and undertook a brief period of training in Hollywood to learn how to operate a film camera. He enlisted in the US Signal Corps in May 1942 as a motion picture cameraman and was sent to...




Date Contributor Update
04 September 2019 09:57:36 Emily Changes to type, description, commanding officers associations and stations

National Archives

Date Contributor Update
14 August 2019 11:02:20 Emily Changes to description and commanding officers associations

USAAF Combat Chronology

Date Contributor Update
27 September 2014 18:42:43 AAM AAM ingest

Units in the UK from ETOUSA Station List, as transcribed by Lt. Col. Philip Grinton (US Army, Retired) and extracted by IWM; air division data from L.D. Underwood, based on the 8th Air Force Strength Report of 6th August 1944, as published in 'The 8th Air Force Yearbook' by Lt. Col. John H Woolnough (1980)