On June 6, 1944, Allied forces stormed the beaches of Normandy in Nazi-occupied France during World War II, forever reshaping the progress of the war and history during the D-Day operation.
Thousands of ships, planes and soldiers from the United States, Britain and Canada surprised Nazi forces.
More than 4,000 Allied soldiers, most of them younger than 20, as well as more than 4,000 German troops died in the invasion. Up to 20,000 French civilians were also reportedly killed in the bombings.
In 2019, veterans and world leaders gathered to honor the soldiers who took part in the invasion, led by Gen. Dwight D. Eisenhower and known then as Operation Overlord.
To mark the historic day, here are 17Â photos that show how the battle unfolded.