U.S. Air Force Senior Airman Quantel Jones, with the 123rd Contingency Response Group, Kentucky Air National Guard, fuels an electric generator for a joint operations center during Operation United Assistance Oct. 5, 2014, at the Léopold Sédar Senghor International Airport in Dakar, Senegal. The Airmen stood up an intermediate staging base at the airport to funnel humanitarian supplies and equipment. United Assistance is the 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. Air National Guard photo by Maj. Dale Greer/Released)