Staff Sgt. Lucas Tripp takes a break with his dog Bak, during a radio station WMZQ’s Military Appreciation Week event at Joint Base Andrews, Md., May 15, 2014. Tripp is an 11th Security Support Squadron military working dog handler and Bak is a German Shepherd detector dog. (U.S. Air Force photo/Airman 1st Class Ryan J. Sonnier)