Four exercises were conducted in the ACE area during autumn 1952. "Blue Alliance" was a major allied air force exercise for the Allied Air Forces Central Europe (AAFCE) to achieve air supremacy over the Central European front and provide close air support to NORTHAG ground forces under the overall command of Lt. General Lauris Norstad, USAF. Two 1952 central region exercises involved air-ground combined forces. "Equinox" was a major air-ground exercise involving French-American tactical air units and a French airborne infantry unit under the command 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.