Army Cpt. Gavino Rivas, a Houston native and civil affairs officer with the 451st Civil Affairs Battalion, speaks with a child of a Salvadoran patient being treated during the Medical Readiness Training Exercise as part of Beyond the Horizon in Ciudad Arce, El Salvador, May 13. BTH is a combined medical and engineer mission that provides humanitarian assistance to the people of El Salvador. (U.S. Army photo by Sgt. Rigo Cisneros)