The world is celebrating D-Day today.
 
This year marks the 72nd anniversary of the historical invasion.
 
On June 6, 1944, more than 150,000 U.S., British and Canadian forces stormed five different beaches along a 50 mile stretch of the Normandy region of France, in order to fight Nazi Germany in World War II.
 
Allied casualties on D-Day have been estimated at 10,000 killed, wounded and missing in action: 6,603 Americans, 2,700 British and 946 Canadians. 
 
The operation was the largest amphibious invasion in history.