The D-Day was the first day of the Invasion of Normandy during World War II, which led to the defeat of Hitler. On the D-Day (6 June 1944), Normandy landings (codenamed Operation Neptune) were carried out under the largest seaborne invasion ever - Operation Overlord. Extensive planning was done for several months to carry out Operation Neptune. The Allied forces did a large-scale military exercise to mislead Hitler’s forces regarding the exact date and location of Operation N