Staff Sgt. Brandon Potts, 28th Security Forces Squadron military working dog handler, throws a toy to Tali, 28th SFS MWD, during a training exercise at Ellsworth Air Force Base, S.D., Oct. 15, 2015. The Ellsworth Veterinary Treatment Facility’s mission is to provide annual examinations and vaccinations to ensure the MWDs are fit to do their duty every day. (U.S. Air Force photo by Airman Sadie Colbert/Released)