U.S. Marines from Special Purpose Marine Air-Ground Task Force - Southern Command and Honduran soldiers from Fifth Infantry Battalion work to install a new pipeline that will provide water throughout the Fuerte Mocoron base in Mocoron, Honduras, Sept. 6, 2016. U.S. Marines and Sailors assigned to Special Purpose Marine Air-Ground Task Force-Southern Command participated in engineering projects, security cooperation and disaster relief preparation in Belize, El Salvador, Guatemala and Honduras. - U.S. Marines from Special Purpose Marine Air-Ground Task Force - Southern Command and Honduran soldiers from Fifth Infantry Battalion work to install a new pipeline that will provide water throughout the Fuerte Mocoron base in Mocoron, Honduras, Sept. 6, 2016. U.S. Marines and Sailors assigned to Special Purpose Marine Air-Ground Task Force-Southern Command participated in engineering projects, security cooperation and disaster relief preparation in Belize, El Salvador, Guatemala and Honduras.