Spc. Sean Brinkerhoff, left, an Evanston, Wyo., native, and Sgt. 1st Class Khampha Kongbouunmee, a Grand Prairie, Texas, native, both of 615th Engineer Company (Horizontal), 52nd Engineer Battalion, out of Fort Carson, Colo., fix the flooring in a 50-bed Ebola treatment unit being built in Gbediah, Liberia, Dec. 19, 2014, in support of Operation United Assistance. Operation United Assistance is a Department of Defense operation in Liberia to provide logistics, training and engineering support to U.S. Agency for International Development-led efforts to contain the Ebola virus outbreak in western Africa. (U.S. Army photo by Sgt. Ange Desinor, 13th Public Affairs Detachment/RELEASED)