Staff Sgt. Joshua Hack, a 316th Security Support Squadron military working dog handler, walks Hugo, a retired military working dog, into the veterinary treatment facility at Joint Base Andrews, Md., Aug. 23, 2024. Hugo could no longer live a comfortable life due to progressive skin cancer and was euthanized. (U.S. Air Force illustration by Senior Airman Bridgitte Taylor) (This image was created in color and changed to black-and-white.)