Anita, 28th Security Forces Squadron military working dog, bites Staff Sgt. Michael Gwin, 28th SFS MWD handler, during control aggression training at Ellsworth Air Force Base, S.D., Oct. 15, 2015. In addition to ensuring the overall health of the MWDs, the Ellsworth Veterinary Treatment Facility also helps deployment readiness by providing needed vaccines and treatments. (U.S. Air Force photo by Airman Sadie Colbert/Released)