Master-at-Arms 2nd Class John Winjum, a military working dog handler, assigned to Camp Lemonnier, Djibouti, security forces stands duty at the Port of Djibouti while ships, tugboats and the pier is inspected, July 7, 2014. Military working dogs are trained to provide deterrence, patrol services and drug or bomb detection. (U.S. Navy photo by Mass Communication Specialist 1st Class Julia A. Casper/Released)