U.S. Air Force Staff Sgt. Jordan Leiter, 52nd Security Forces Squadron military working dog handler, conducts detection training with Dirk, a MWD, in the post office at Spangdahlem Air Base, Germany, Aug. 28, 2018. Training helps MWD handlers understand how to recognize what their dog is telling them. (U.S. Air Force photo by Airman 1st Class Valerie Seelye)