101st Airborne Division coast and strengthened the paratrooper positions, many were relieved and sent to the rear to organize for the next big paratroop operation. On 17 September 1944, the 101st Airborne Division became part of XVIII Airborne Corps, under Major General Matthew Ridgway, part of the First Allied Airborne Army, commanded by Lieutenant General Lewis H. Brereton. The division took part in Operation Market Garden (17–25 September 1944), an unsuccessful Allied military operation under Field Marshal Bernard Montgomery, commander of the Anglo-Canadian 21st Army Group, to capture Dutch bridges over the Rhine fought in the Netherlands and the largest airborne operation of
1st Airborne Task Force (Allied) land simultaneously in Normandy and in southern France in June 1944, attacking the Germans from the north and south in a classic pincer movement, after which the southern forces would head east to aid Allied forces in Italy. However it was soon realized that there were not enough landing ships or men available to carry out both operations at the same time, so the southern invasion ("Operation Anvil") was postponed. The southern invasion (now "Operation Dragoon") was planned for August 1944, and all airborne forces were allocated to a new unit formed on 11 July 1944 as the Seventh Army