Staff Sgt. Jacob Twaddle, 11th Security Support Squadron military working dog handler, calms X, a military working dog, during a training mission in the National Capital Region, Aug. 19, 2015. X practiced jumping into and out of the UH-1N Twin Huey helicopter and staying calm while in close proximity to the helicopter. (U.S. Air Force Photo/ Airman 1st Class J.D. Maidens)