This year marks the 77th anniversary of D-Day, which proved to be a turning point in World War II.

On June 6, 1944, more than 160,000 Allied troops — about half of them Americans — invaded Western Europe, overwhelming German forces in what was the largest amphibious invasion in history.

The British Army's 50th Infantry Division lands on beaches in Normandy.
The British Army's 50th Infantry Division lands on beaches in Normandy.
Courtesy Imperial War Museum
Four Americans show off their shaved heads, which spell out the word "hell," a few hours before arriving on the beaches of France.
Four Americans show off their shaved heads, which spell out the word "hell," a few hours before arriving on the beaches of France.
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US troops wait to disembark a landing craft on D-Day. The Allies went to elaborate lengths to maintain secrecy and mislead Adolf Hitler. They employed double agents and used decoy tanks and phony bases in England to hide actual troop movements.
US troops wait to disembark a landing craft on D-Day. The Allies went to elaborate lengths to maintain secrecy and mislead Adolf Hitler. They employed double agents and used decoy tanks and phony bases in England to hide actual troop movements.
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US paratroopers fix their static lines before a jump over Normandy on D-Day.
US paratroopers fix their static lines before a jump over Normandy on D-Day.
AP Photo/U.S. Army Signal Corps
US troops huddle behind the protective front of their landing craft as it nears a beachhead in France. Smoke in the background is naval gunfire giving cover to troops on land. Germans rained mortars and artillery down on Allied troops, killing many before they could even get out of their boats. Fighting was especially fierce at Omaha Beach, where Nazi fighters nearly wiped out the first wave of invading forces and left the survivors struggling for cover.
US troops huddle behind the protective front of their landing craft as it nears a beachhead in France. Smoke in the background is naval gunfire giving cover to troops on land. Germans rained mortars and artillery down on Allied troops, killing many before they could even get out of their boats. Fighting was especially fierce at Omaha Beach, where Nazi fighters nearly wiped out the first wave of invading forces and left the survivors struggling for cover.
U.S. Army
Tank landing ships, each towing a protective barrage balloon, leave the English coast carrying supplies to the French beachhead.
Tank landing ships, each towing a protective barrage balloon, leave the English coast carrying supplies to the French beachhead.
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US troops and vehicles are ready to disembark.
US troops and vehicles are ready to disembark.
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Commandos with the British Royal Navy's 4th Special Service Brigade advance to Juno Beach.
Commandos with the British Royal Navy's 4th Special Service Brigade advance to Juno Beach.
Courtesy Imperial War Museum
US Gen. Dwight D. Eisenhower, supreme commander of the Allied forces, gives the order of the day to paratroopers in England. "Full victory — nothing else" was the command just before they boarded their planes to participate in the first wave. The invasion — code-named Operation Overlord — had been brewing for more than two years.
US Gen. Dwight D. Eisenhower, supreme commander of the Allied forces, gives the order of the day to paratroopers in England. "Full victory — nothing else" was the command just before they boarded their planes to participate in the first wave. The invasion — code-named Operation Overlord — had been brewing for more than two years.
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Landing craft and a fleet of protection vessels approach Omaha Beach.
Landing craft and a fleet of protection vessels approach Omaha Beach.
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American troops help their injured comrades after their landing craft was fired upon. Although the true number of casualties on D-Day will never be known, it is estimated that approximately 10,000 Allied soldiers were killed, wounded and or were missing in action.
American troops help their injured comrades after their landing craft was fired upon. Although the true number of casualties on D-Day will never be known, it is estimated that approximately 10,000 Allied soldiers were killed, wounded and or were missing in action.
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Allied soldiers arrive on a beach.
Allied soldiers arrive on a beach.
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These US soldiers reached Omaha Beach by using a life raft.
These US soldiers reached Omaha Beach by using a life raft.
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French soldiers arrive after Allied forces stormed the beaches of Normandy.
French soldiers arrive after Allied forces stormed the beaches of Normandy.
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Injured American soldiers wait to be moved to a field hospital after storming Omaha Beach.
Injured American soldiers wait to be moved to a field hospital after storming Omaha Beach.
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This aerial photo shows a landing zone for British planes near Ranville, France.
This aerial photo shows a landing zone for British planes near Ranville, France.
Royal Air Force Official Photographer/Getty Images
Canadian soldiers place flowers on temporary graves for allied soldiers in Normandy.
Canadian soldiers place flowers on temporary graves for allied soldiers in Normandy.
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