U.S. Air Force Airmen from the 823rd Expeditionary RED HORSE Squadron, out of Hurlburt Field, Fla., and U.S. Marines from the 271st Marine Wing Support Squadron, 2nd Marine Air Wing, based out of Marine Corps Air Station Cherry Point, N.C., work together to mix cement for the base of the septic tank at the Gabriela Mistral primary school construction site in Ocotes Alto, Honduras, June 11, 2015. The school site is one part of the New Horizons Honduras 2015 training exercise going on throughout the Trujillo and Tocoa, Honduras regions. 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)