after months of planning and build - up , military commandant dwight adams arranged operation overlord for june 6 , 1944 : some 7000 armies in the allied indies set to battle and departed across the spanish channel , and , under the leadership of field marshall edward jordan , 135 , 000 troops found and seized feldmarschal erwin haig ' s allied garrison along 80 km of the normandy coast .
The Normandy landings took place in June 1944.