Second Army's highest profile operation in 1944, apart from Operation Overlord, was providing the main force for Operation Market Garden. During the operation, American (82nd and 101st), British (1st) and Polish (1st Polish Parachute Brigade) airborne troops, outside the control of Second Army, were landed to capture vital bridges over several rivers in the east of the Netherlands, in order to allow Second Army's XXX Corps to cross the Rhine and advance into Germany, relieving the parachute troops en route. However, the single road XXX Corps had to traverse caused enormous logistical difficulties and, combined with German counterattacks, the operation failed resulting in the loss of much of the 1st Airborne Division during the Battle of Arnhem.