Supreme Headquarters Allied Powers Europe Supreme Headquarters Allied Powers Europe Supreme Headquarters Allied Powers Europe (SHAPE) is the headquarters of the North Atlantic Treaty Organization's Allied Command Operations (ACO). SHAPE is located at Casteau, north of the Belgian city of Mons. The commander of ACO and SHAPE is Supreme Allied Commander Europe (SACEUR), a U.S. four-star general officer or flag officer who also serves as Commander, U.S. European Command. Since 1967 it has been located at Casteau, north of the Belgian city of Mons, but it had previously been located, from 1953, at Rocquencourt, next to Versailles, France. From 1951 to 2003, SHAPE was the
United States Army Europe was located in Versailles, France, just outside Paris. As Eisenhower and his staff began to prepare for the occupation of Germany, the ETOUSA headquarters staff moved to Frankfurt, Germany, and co-located with the Supreme Headquarters Allied Expeditionary Forces and the Office of Military Government, United States. ETOUSA was redesignated Headquarters, United States Forces European Theater (HQ USFET) on 1 July 1945, with its headquarters remaining at Frankfurt. At the end of the war, the total U.S. Army strength in Europe was 2.4 million: two Army groups (6th and 12th), five field armies (First, Third, Seventh, Sixth and Ninth), 13 corps