Workers from a local medical clinic greet Ellen Johnson Sirleaf, president of Liberia, followed by Deborah Malac, U.S. Ambassador to Liberia and Bill Berger, and USAID Disaster Assistance Response Team leader during a tour of Foya, Liberia. The U.S. Agency for International Development is the lead U.S. Government organization for Operation United Assistance. U.S. Africa Command supported the effort by providing command and control, logistics, training and engineering assets to contain the Ebola virus outbreak in West African nations.