U.S. Air Force Staff Sgt. Joe Burns and military working

U.S. Air Force Staff Sgt. Joe Burns and military working dog, Kahn, assigned to the 673rd Security Forces Squadron, pause from searching for simulated hidden explosives while completing their annual certification at Joint Base Elmendorf-Richardson, Alaska, Oct. 14, 2016. The annual certification evaluated the military working dog team’s ability to detect hidden simulated explosives and the dog’s obedience to the handler’s commands. This training ensures that the military working dog teams maintain their skills and operational readiness. (U.S. Air Force photo/Alejandro Pena)