Lt. Col. Brian DeSantis, the public affairs officer for Joint Forces Command – United Assistance, approaches a UH-60 Black Hawk from Task Force Iron Knights, 2nd Battalion, 501st Aviation Regiment, 1st Combat Aviation Brigade, 1st Armored Division, before it drops off Deborah Malac, the U.S. ambassador to Liberia, and Maj. Gen. Gary Volesky, the commander of JFC-UA, during a visit to the National Police Training Academy, Paynesville, Liberia, Nov. 7, 2014. The Task Force Iron Knights constantly move personnel and equipment across Liberia 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. 1st Class Nathan Hoskins, Joint Forces Command – United Assistance Public Affairs/RELEASED)