Students from the American School of Kuwait watch as Rex, an explosive detection and patrol dog, attacks a faux assailant during a demonstration at Camp Arifjan, Kuwait, May 25, 2014. The students toured Camp Arifjan, Kuwait, as part of a field trip and also spent time exploring an M1A1 Abrams tank and shopping at the Post Exchange. (U.S. Army Photo by Sgt. Jennifer Spradlin, U.S. Army Central Public Affairs)