U.S. Air Force Staff Sgt. Ryan Santiago, 39th Security Forces Squadron unit training instructor, runs during shooting drills in preparation for the 2018 Defender’s Challenge at Incirlik Air Base, Turkey, July 27, 2018. Santiago, after finishing at the top was one of the two SFS Airmen who have the chance to compete for a spot on the 2018 United States Air Forces in Europe-Air Forces Africa’s Defender Challenge team. (U.S. Air Force photo by Staff Sgt. Kimberly Nagle)