For the first time ever, see the Southwick House D Day Map up close as our interactive guide takes you on a step by step journey, from the early preparation right through to the final assault and the days after. Today marks the 80th anniversary of Operation Overlord, the Allied liberation of occupied Europe during the Second World War, which began on 6 June, 1944, commonly referred to as D-Day. Operation Neptune was the naval assault phase and involved safely landing 156,000 troops on 50 miles o

Inside the D-Day Invasion of 1944 | Britannica

D-Day Invasion Plan - History of World War 2 and the 'D-Day Invasion Plan'.