U.S. Army Gen. David M. Rodriguez, the commander of U.S. Africa Command, speaks about United Assistance during a news conference at the Pentagon in Arlington, Va., Oct. 7, 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. (DoD photo by Master Sgt. Adrian Cadiz, U.S. Air Force/Released)