U.S. Army Spc. Jason Rowe (left), and Spc. Nicholas

U.S. Army Spc. Jason Rowe (left), and Spc. Nicholas Koenig, both with the 136th Engineering Company (Vertical), Maine Army National Guard, bolt a supporting beam to the roof of a schoolhouse during Beyond the Horizon (BTH) at El Tamarindo, El Salvador, May 15, 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 Sgt. Brandon Bolick/Released)