 By December 1943 the division had returned to England and begun training for operations in North @-@ West Europe under the supervision of I Airborne Corps . Although the 1st Airborne Division was not scheduled to take part in the Normandy landings , a contingency plan , Operation Wasteage , was drawn up whereby the division would be parachuted in to support any of the five invasion beaches if serious delays were experienced . This plan turned out not to be required . 
