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
Supreme Headquarters Allied Powers Europe Army Dwight D. Eisenhower, as he had successfully directed the Allied landings in Normandy and subsequent march into Germany during World War II, amid many inter-Allied controversies over the proper conduct of the campaign on the Western Front. On December 19, 1950, the North Atlantic Council announced the appointment of General Eisenhower as the first SACEUR. British Field Marshal Sir Bernard L. Montgomery moved over from the predecessor Western Union Defence Organization (WUDO) to become the first Deputy SACEUR, who would serve until 1958. Volume 3 of Nigel Hamilton's "Life of Montgomery of Alamein" gives a good account of Montgomery's