U.S. Air Force Staff Sgt. Alex Inn, 18th Security Forces Squadron military working dog handler, and Bosco, a military working dog, search for hidden hazardous materials during detection training on Kadena Air Base, Japan, Feb. 26, 2014. The MWD handlers conduct daily training to give them exercise and keep them proficient in basic skills. The MWD handlers work side-by-side with their dogs to provide base security, which includes searching vehicles and buildings for illegal substances and contraband. (U.S. Air Force photo by Naoto Anazawa)