From left, Lt. Col. Michael Baker, commander of the 62nd Engineer Battalion, Emmanuel Tucker, site engineer, Joel Freeman Sr., site project manager, Maj. Gen. Gary Volesky, commander of Joint Froce Command – United Assistance, Sam Sells, military liaison for U.S. Agency for International Development, and Richard Sloop Jr., project manager for a contracting company, pose for a photo on the site of a new Ebola treatment unit in Zorzor, Liberia, Nov. 18, 2014. United Assistance is a Department of Defense operation to provide command and control, logistics, training and engineering support to USAID-led efforts to contain the Ebola virus outbreak in West African nations. (U.S. Army Photo by Sgt. 1st Class Brien Vorhees, 55th Signal Company (Combat Camera) / Released)