A volunteer at the medical clinic washes the hands of a little girl who is waiting to be seen by a doctor during Beyond the Horizon in Caluco, El Salvador, April 17, 2013. Beyond the Horizon is a Chairman of the Joint Chiefs of Staff-directed, U.S. Southern Command-sponsored joint and combined field training humanitarian exercise in which troops specializing in engineering, construction and health care provide much-needed services to communities in need while receiving valuable deployment training and building important relationships with partner nations. (U.S. Army photo by Sgt. 1st Class Horace Murray/Released)