Iwo Jima

As a young Marine corporal, Williams went ahead of his unit during the Battle of Iwo Jima in the Pacific Ocean in February 1945 and eliminated a series of Japanese machine gun positions.

Begaye was one of hundreds of Navajos recruited to develop a miltary code based on their native language during World War II.

Richard Overton enlisted in an all-black battalion, serving in Iwo Jima and Okinawa. He loved ice cream, whiskey and cigars. "Today we mourn not just a hero, but a legend," the U.S. Army said.

The iconic photograph, taken during one of the bloodiest battles of World War II, depicts Pvt. 1st Class Harold Schultz among others — not Navy Corpsman John Bradley, as was originally thought.

Analysis by amateur historians has called into question the identity of some of the men depicted in the iconic World War II image and statue. Now the Marine Corps is taking another look.