Marines from 271st Marine Wing Support Squadron, 2nd Marine Air Wing, out of Marine Corps Air Station Cherry Point, N.C., dig a trench for electrical wire around the exterior of the new school building being constructed at Gabriela Mistral primary school in Ocotoes Alto, Honduras, June 1, 2015. The Marines will be working with their Air Force counterparts from the 823rd Expeditionary RED HORSE Squadron out of Hurlburt Field, Fla., during exercise New Horizons Honduras 2015. New Horizons was launched in the 1980s and is an annual joint humanitarian assistance exercise that U.S. Southern Command conducts with a partner nation in Central America, South America or the Caribbean. The exercise improves joint training readiness of U.S. and partner nation civil engineers, medical professionals and support personnel through humanitarian assistance activities. (U.S. Air Force photo by Capt. David J. Murphy/Released)