Pvt. 1st Class Joseph Martinez, a U.S. Army Reserve horizontal construction engineer from Ceiba, Puerto Rico, who serves with the 756th Engineer Company (Horizontal), 448th Eng. Battalion, ground guides a 10,000 lb. forklift to reposition construction materials around the forward operating base supporting U.S. Southern Command exercise Beyond the Horizon 2017-Belize. BTH 2017 is a partnership exercise between U.S. Army South and the Belize government that will consist of various medical events and construction projects throughout Belize.