KADENA AIR BASE, Japan --   U.S. Air Force Staff Sgt. Bryan Savella, military working dog (MWD) handler assigned to the 18th Security Forces Squadron, and U.S. Air Force Colonel Thang Doan, commander assigned to the 18th Mission Support Group, pet MWD KitKat during a MWD retirement ceremony July 26, 2019, on Kadena Air Base, Japan. MWDs are trained in a variety of specialties, including detection of narcotic substances and improvised explosive devices, and capturing and detaining suspects. (U.S. Air Force photo by Senior Airman Cynthia Belío)