The First Allied Airborne Army was an Allied formation formed on 2 August 1944 by the order of General Dwight D. Eisenhower, the Supreme Allied Commander of the Allied Expeditionary Force. The formation was part of the Allied Expeditionary Force and controlled all Allied airborne forces in Western Europe during 1944 and 1945. These included IX Troop Carrier Command, the XVIII Corps (Airborne), which controlled the 82nd Airborne Division, the 101st Airborne Division, the 17th Airborne Division and a number of independent airborne units, and all British airborne forces including the 1st Airborne Division and the 6th Airborne Division.
From the time of its creation until the end of World War II, the formation commanded the Allied airborne forces that participated in the Allied advance through North-West Europe, including Operation Market-Garden in September 1944, repelling the German counter-offensive launched during the Battle of the Bulge between December 1944 and January 1945, and Operation Varsity in March 1945. The formation was then officially deactivated on 20 May 1945, with the British units under its command returning to the United Kingdom and the American units being renamed as First Airborne Army and taking over command of the American Zone of Occupation in Berlin.
