U.S. Air Force Staff Sgt. Sean McKenna, 355th Security Forces Squadron Military Working Dog handler, Mushe, 355th SFS MWD, pose for a photo during obedience training at Davis-Monthan Air Force Base, Ariz., Jan. 23, 2014. Mushe is trained as a patrol dog as well as an explosives detective dog and will apply both at his deployed location. (U.S. Air Force photo by Senior Airman Camilla Elizeu/Released)