– Marine Corps Times – Marines with a Spain-based task force were some of the first U.S. troops dispatched to West Africa to help combat the spread of Ebola, and since arriving in early October they’ve been kept busy laying the foundation for what’s expected to become a large-scale, long-term humanitarian mission. The Marine Corps force in Liberia numbers about 100 personnel and includes four MV-22B Ospreys and two KC-130J Super Hercules cargo airplanes. They’re being used primarily for aerial site surveys, reconnaissance and to transport senior U.S and African officials.