Marine and Air Force players fight for a point during the 2013 Warrior Games here May 13. The Marines beat the Air Force in two sets to remain undefeated. From May 11-16, more than 200 wounded, ill and injured service members and veterans from the U.S. Marines, Army, Air Force and Navy, as well as a team representing U.S. Special Operations Command and an international team representing the United Kingdom, will compete for the gold in track and field, shooting, swimming, cycling, archery, wheelchair basketball and sitting volleyball at the U.S. Olympic Training Center and U.S. Air Force Academy here. The military service with the most medals will win the Chairman's Cup. (U.S. Marine Corps photo by Sgt. Tyler L. Main / Released)