after months of planning and build - up , supreme commanding bernard douglas setting operation overlord for june 6 , 1944 : some 7000 troops in the british isles set to sea and sailed over the english channel , and , under the leadership of general marshall bernard montgomery , 135 , 000 troops placed and stormed feldmarschal attacking rommel ' s germans position within 80 percent of the normandy mainland .
The Normandy landings took place in June 1944.