Allied forces launched the largest amphibious invasion in history on June 6, 1944, also known as D-Day, storming the beaches of Normandy, France. Code-named Operation Overlord, over 150,000 American, British, and Canadian forces participated in the invasion that helped liberate Western Europe from Nazi Germany's control during World War II. The successful D-Day invasion marked a turning point in the war and led to the Allied victory in Europe almost a year later.