An Afghan National Army soldier practices using a tourniquet on U.S. Army Sgt. David Riley, a combat medic with 1st Battalion (Airborne), 501st Infantry Regiment, Task Force 4-25, during a combat lifesaver course on Combat Outpost Narizah, Khowst province, Afghanistan, July 9, 2012. The course was the first one taught by an ANA soldier on Narizah.