Jacob Sterns, a member of the U.S. Marine Corps All-Marine track and field team, works on discus throwing techniques during final training at the U.S. Air Force Academy in Colorado Springs, Colo., April 22, 2012, in preparation for the 2012 Warrior Games. The Warrior Games is an annual event allowing wounded, ill and injured Service members and veterans to compete in Paralympic sports including archery, cycling, shooting, sitting volleyball, track and field, swimming and wheelchair basketball. (U.S. Marine Corps photo by Marvin Lynchard/Released)