Beny, a military working dog, searches a bookshelf for drug and explosive samples during detection training on Kadena Air Base, Japan, Feb. 19, 2014. The MWD handlers run their dogs through a course every day to give them exercise and keep them trained to do their job. The MWD handlers work side-by-side with their dogs to provide base security as well as search vehicles for illegal drugs and explosives. (U.S. Air Force photo by Naoto Anazawa)