A rusted gun is seen inside a gun emplacement above Invasion Beach, on Iwo Jima, now known officially as Ioto, Japan, Friday, June 7, 2013. Iwo Jima is a training site like no other. Th

 

              A rusted gun is seen inside a gun emplacement above Invasion Beach, on Iwo Jima, now known officially as Ioto, Japan, Friday, June 7, 2013. Iwo Jima is a training site like no other. Th
A rusted gun is seen inside a gun emplacement above Invasion Beach, on Iwo Jima, now known officially as Ioto, Japan, Friday, June 7, 2013. Iwo Jima is a training site like no other. The rugged volcanic crag is one of the most iconic battlegrounds of World War II, and is so isolated and barren it has almost never been inhabited by anyone other than military troops. But from the perspective of U.S. Navy fighter pilots who regularly train on the island’s one functioning airstrip, Iwo is unique in another way. (AP Photo/Greg Baker)