ROBERTS INTERNATIONAL AIRPORT, Republic of Liberia - U.S. Air Force Airman 1st Class Thomas Clark of the Joint Task Force-Port Opening team of the 621st Contingency Response Wing assigned to Joint Base McGuire-Dix-Lakehurst, N.J., helps unchain a Rough Terrain Container Handler inside of a Globemaster III C-17 during Operation UNITED ASSISTANCE here, October 20, 2014. The RTCH is primarily used to move oversized shipping containers and will assist in storing equipment and supplies in support of the USAID-led international effort to provide effective and efficient delivery of assistance to the Government of Liberia to end the Ebola outbreak. (U.S. Air Force photo/Staff Sgt. Gustavo Gonzalez/RELEASED)