D-Day, which took place on June 6, 1944, was the largest amphibious invasion in history.

It was the beginning of Operation Overlord, the Allied campaign to liberate Western Europe from Nazi occupation.

The invasion was commanded by U.S. General Dwight D. Eisenhower.

Over 156,000 American, British, and Canadian troops landed on five beaches along a 50-mile stretch of the Normandy coast in France.

The landing beaches were codenamed Utah, Omaha, Gold, Juno, and Sword.

The landings were preceded by a massive aerial and naval bombardment and the dropping of airborne troops behind enemy lines.

The Allied forces faced fierce resistance from German forces, particularly at Omaha Beach.

The Allies had undertaken a massive deception campaign, Operation Fortitude, to convince the Germans that the main invasion would occur at Pas-de-Calais.

By the end of the day, the Allies had established a foothold in France.

D-Day marked the successful opening of a second front in Western Europe and was the beginning of the end of the war in Europe.