U.S. Navy Lt. Jeffery Fornadley, a flight surgeon with SPMAGTF Crisis Response – Africa, helps members of Samaritan's Purse, an international relief group, offload, from an MV-22B Osprey, bags of concrete that will be used to by health organizations to build Ebola Treatment Units, while in support of Operation United Assistance in Fish Town, Liberia, Nov. 21, 2014. United Assistance is a Department of Defense operation to provide command and control, logistics, training, and engineering support to U.S. Agency for International Development- led efforts to contain the Ebola virus outbreak in West African nations. (U.S. Marine Corps photo by Lance Cpl. Andre Dakis/SPMAGTF-CR-AF Combat Camera/Released)