U.S. Navy Petty Officer 3rd Class Kelsey Carlton leads Donci, a military working dog, out of her van to train on Fleet Activities, Yokosuka, Japan, Nov. 3, 2015. The military uses working dogs to apprehend suspects, and detect explosives and narcotics while searching buildings, ships and submarines on the base. U.S. Navy photo by Petty Officer 2nd Class Peter Burghart