U.S. Air Force Staff Sgt. Ryan Santiago, 39th Security Forces Squadron unit training instructor, observes shooting drills in preparation for the 2018 Defender’s Challenge, at Incirlik Air Base Turkey, July 27, 2018. The shooting drills consisted of challenging the SFS Airmen in other ways, such as requiring them to do a work out before performing a drill. (U.S. Air Force photo by Staff Sgt. Kimberly Nagle)