Tech. Sgt. Matthew Mosher and his dog, Zix, a patrol explosive detection dog, prior to early-morning training at Kandahar Airfield, Afghanistan, on July 9, 2012 . The handlers and their dogs rotate through Kandahar Airfield for validation prior to moving out to forward operating bases around the country where they will lead combat foot patrols and sniff out IEDs and other explosives. Mosher is a military working dog handler. (U.S. Air Force photo/TSgt. Stephen Hudson)