Supreme Headquarters Allied Powers Europe of "Général d'Armée" Alphonse Juin, French Army. "Holdfast" was a major allied air-ground exercise involving 150,000 British Army of the Rhine, Dutch, Belgian and Canadian troops of NATO's Northern Army Group in coordination with the Allied Air Forces Central Europe. They maneuvered east of the Rhine River in the British Zone under the overall command of Lt. General Sir Richard Nelson Gale, British Army. Finally, "Rosebud" involved ground maneuvers by the U.S. Seventh Army in the American Zone of Occupation of Allied-occupied Germany. The initial plans saw the defence of Western Europe from a Soviet invasion resting heavily on nuclear
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