What was the countries involved in Normandy?

The primary countries involved in the Normandy invasion, known as D-Day, were the United States, the United Kingdom, and Canada. Additionally, forces from various other Allied nations, including Australia, New Zealand, France, and Poland, contributed to the operation. The invasion, which took place on June 6, 1944, was a crucial turning point in World War II, leading to the liberation of Western Europe from Nazi occupation.