U. S. Air Force Staff Sgt. Tristen Hampton, 316th Security Forces Squadron K-9 handler, comforts Narko, a military working dog, in an AW-139 helicopter during a training exercise at Joint Base Andrews, Md., Oct. 5, 2023. The introduction training allowed MWD handlers to assess their K-9s' response to loud noise and new environments. (U.S. Air Force photo by Senior Airman Bridgitte Taylor)