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European Theater of Operations, United States Army

The European Theater of Operations, United States Army (ETOUSA) was a theater of Operations responsible for directing United States Army operations throughout the European theatre of World War II, from 1942 to 1945. It commanded Army Ground Forces (AGF), United States Army Air Forces (USAAF), and Army Service Forces (ASF) operations north of Italy and the Mediterranean coast. It was bordered to the south by the North African Theater of Operations, United States Army (NATOUSA), which later became the Mediterranean Theater of Operations, United States Army (MTOUSA).

European Theater of Operations,
United States Army

4 July 1942 — 1 July 1945
(2 years, 11 months, 3 weeks and 6 days)

1 July 1945

United States

Theater of Operations

The term theater of operations was defined in the US Army field manuals as the land and sea areas to be invaded or defended, including areas necessary for administrative activities incident to the military operations. In accordance with the experience of World War I, it was usually conceived of as a large land mass over which continuous operations would take place and was divided into two chief areas-the combat zone, or the area of active fighting, and the Communications Zone, or area required for administration of the theater. As the armies advanced, both these zones and the areas into which they were divided would shift forward to new geographic areas of control.[1]

Organized 8 January 1942 in England as Headquarters, United States Army Forces in the British Isles

Redesignated 8 June 1942 as Headquarters, European Theater of Operations, United States Army

Redesignated 1 July 1945 as Headquarters, United States Forces, European Theater

Redesignated 15 March 1947 as Headquarters, European Command

Redesignated 1 August 1952 as Headquarters,

United States Army Europe

ETOUSA became United States Forces European Theater (USFET) from 1 July 1945 to 15 March 1947; and then European Command (EUCOM) 15 March 1947 to 1 August 1952.


Official U.S. Army lineage details for the European Theater of Operations are:[7]


Also, on August 1, 1952 the United States European Command (USEUCOM) was established with General Matthew Ridgway in command. Ridgway served concurrently as the NATO Supreme Allied Commander Europe (SACEUR). USEUCOM absorbed all functions and elements of EUCOM and additionally assumed control of all US Air Force and US Navy forces in Europe.

North Africa campaigns

Italy campaigns

Western Europe campaigns

The 16 officially recognized US military campaigns in the European Theater of Operations are:[8]

LTG 24 June 1942 to 4 February 1943

Dwight D. Eisenhower

LTG 5 February 1943 to 3 May 1943

Frank M. Andrews

LTG 9 May 1943 to 15 February 1944

Jacob L. Devers

GA 16 February 1944 to 30 June 1945

Dwight D. Eisenhower

China Burma India Theater of Operations

Mediterranean Theater of Operations

Pacific Ocean Areas

South West Pacific Area (command)

United States Army Europe

. Paris, France: Office of the Theater Historian Paris, France. December 1945. Archived from the original on 11 March 2008. Retrieved 9 June 2010. {{cite book}}: |work= ignored (help)

Order of Battle of the U.S. Army, World War II, European Theater of Operations: Divisions

at the U.S. Army Center of Military History

Lineage and Honors Information

at the National Archives

Records of Headquarters, European Theater of Operations, United States Army (World War II)