U.S. Army Sgt. Jinlin Zhang, 238th Transportation Company from Concord, Calif. puts on sterile gloves to render medical treatment to a casualty during a training exercise as part of the WAREX events hosted by the 91st Training Division. Zhang practices combat life saver procedures to provide aid to a casualty when his unit was experiencing enemy fire. (U.S. Army photo by Spc. Sean McCallon, 91st Training Division public affairs.)