U.S. Navy Secretary Ray Mabus, left, places a flower wreath at the base of the Reunion of Honor monument during the 70th anniversary of the Battle of Iwo Jima at the Reunion of Honor memorial in Iwo To, Japan, March 21, 2015. U.S. and Japanese veterans and their families, U.S. Marines and sailors assigned to the 3rd Marine Expeditionary Force and leaders from both nations attended the event.