U.S. Air Force Staff Sgt. Johny Londono, 39th Security Forces Squadron flight sergeant, and U.S. Air Force Senior Airman Jomalier Viera-Martinez, 39th SFS response force leader, practice combatives in preparation for the 2018 Defender’s Challenge, at Incirlik Air Base Turkey, July 26, 2018. Viera-Martinez, one of the two SFS Airmen who earned the chance to fight 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)