Allies: The Allies refer to the countries that fought together against the Axis powers (Germany, Italy, Japan) during World War II.
Axis Powers: The Axis powers were formed by Germany, Italy, and Japan who fought against the Allies during World War II.
D-Day Invasion: The D-Day invasion was an amphibious assault on Normandy beaches in France on June 6th, 1944. It marked a turning point in World War II.