Former Marine Corps Cpl. Jeremiah Peters stretches as his service dog, Bella, rests at his feet during the 2014 Marine Corps Trials on Camp Pendleton, Calif., March 4, 2014. The invitational event involves four competing teams comprised of active duty Marines, veterans and international service members. Athletes compete in eight sports: archery, shooting, wheelchair basketball, sitting volleyball, swimming, cycling, track and field events. (U.S. Marine Corps photo by Lance Cpl. Anna Albrecht)