D-Day, also known as the battle of Normandy, was an invasion from Britian to the coasts of Normandy. The Germans knew an attack was comming but they expected it to come at Calais. Germany's troops were fortified there, they could have moved them to Normandy but they thought it was a diversion so they remained at Calais. The invasion consisted of 150,000 allied soldier, 600 warships, and 4,000 other vessels, wich all crossed the English channel at night with no lights. Within a week allied forces had placed 326,000 soldiers, 50,000 vehicles and 100,000 tons of suplies. Before the invasion was over allied forces had landed more than 1,000,000 men. Germany would respond 6 months latter in the Batlle Of The Bulge.