U.S. Army Pfc. Shawn Grooms, with the 136th Engineer

U.S. Army Pfc. Shawn Grooms, with the 136th Engineer Company (Vertical), Maine Army National Guard, scrapes and brushes away debris on the outer scaffolding of the partially constructed schoolhouse before his fellow engineers can safely navigate it during Beyond the Horizon (BTH) at Las Marias, El Salvador, May 13, 2013. BTH 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 Staff Sgt. Ian Shay/Released)