U.S. Air Force Staff Sgt. Greg Chmielewski, 354th Security Forces Squadron combat arms instructor, demonstrates a shooting stance at the Combat Arms Training Range, July 9, 2013, Eielson Air Force Base, Alaska. After completing classroom training, Airmen have the opportunity to hone their shooting skills using an engagement skills trainer. (U.S. Air Force photo by Senior Airman Shawn Nickel/Released)