Staff Sgt. James Wader, 81st Security Forces Squadron, prepares Toki, a military working dog, for a demonstration July 25, 2013, in the military working dog kennel training yard, Keesler Air Force Base, Miss. Canine officers, along with their trainers, are constantly working to maintain themselves as a serious and effective force of security, both at Keesler and in deployed locations. (U.S. Air Force photo by Airman 1st Class Stephan Coleman)