U.S. Army veteran Christina Gardner, from Fort Campbell,

U.S. Army veteran Christina Gardner, from Fort Campbell, Ky., over hand serves the volleyball during the sitting volleyball warm ups for the 2017 Department of Defense Warrior Games at Chicago, Ill., June 29, 2017. The DOD Warrior Games are an adaptive sports competition for wounded, ill and injured service members and veterans. Approximately 265 athletes representing teams from the Army, Marine Corps, Navy, Air Force, Special Operations Command, United Kingdom Armed Forces, and the Australian Defence Force will compete June 30 - July 8 in archery, cycling, track, field, shooting, sitting volleyball, swimming, and wheelchair basketball. (U.S. Army photo by Pfc. P.J. Siquig)