World War II – European Theater of Operations

The "European Theater of Operations" was the term used by the United States in World War II, to refer to all US military activity in Europe that fell under the administrative command of "European Theater of Operations, United States Army" (ETOUSA). It was bordered to the south, by the Mediterranean Theater of Operations (MTO), covering North Africa and Italy. The United States Department of War officially established ETOUSA, on June 8, 1942. Its mission was to conduct planning for the eventual retaking of Europe, and to exercise administrative and operational control over U.S. forces. From February 1944, the "Supreme Headquarters Allied Expeditionary Force" (SHAEF) took over operational command. As an Allied command, SHAEF also had operational control of British and all other allied land forces and tactical air forces in the European theater.

The term "European Theater of Operations" should not be confused with the European Theater of World War II, which is often defined to include the years before the US entered the war, and other campaigns and actions which did not involve the use of American forces. The term "theater of operations" was defined in the American field manuals as "the land and sea areas to be invaded or defended, including areas necessary for administrative activities related to the military operations".

This website tells the story of individuals that served in the European Theater of Operations.

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