U.S. Army Chief of Staff Gen. Ray Odierno gives his remarks during the National Memorial Day Parade in Washington, D.C., May 27, 2013. Also in attendance were Secretary of the Navy Ray Mabus, right center, and Chief of Naval Operations Adm. Jonathan ...

Chief of Naval Operations Adm. Jonathan Greenert and Army Chief of Staff Gen. Ray Odierno clap during remarks by Secretary of the Navy Ray Mabus, not shown, at the National Memorial Day Parade in Washington, D.C., May 27, 2013. (U.S. Army photo by St...

Former U.S. Army Soldier J.R. Martinez speaks about his role as a Wounded Warrior, to remind the American public about veterans and their visible and invisible battle scars, during the National Memorial Day Parade in Washington, D.C., May 27, 2013. M...

U.S. Army Soldier from the 3rd Infantry Regiment "The Old Guard" escort a riderless horse during the National Memorial Day Parade in Washington, D.C., May 27, 2013. Riderless horse is a single horse without a rider, with boots reversed in the stirru...