D-Day, which stands for "Decision Day," was the code name for the day on which the Allied forces invaded Nazi-occupied France during World War II. It marked the beginning of the end of the war in Europe.
The invasion of Normandy, France, was a massive operation that involved months of planning and coordination among the Allied forces, including the United States, Great Britain, Canada, and other countries.
On June 6, 1944, Allied forces landed on the beaches of Normandy in a large-scale amphibious assault. The operation involved over 150,000 troops, making it the largest seaborne invasion in history. The invasion was supported by thousands of aircraft and ships, and the Allied forces faced heavy resistance from the German defenders.
The success of the D-Day invasion allowed the Allies to establish a foothold in France and begin the liberation of Western Europe from Nazi control. It also led to the eventual defeat of Germany in World War II.