Indian Army Lt. Col. Ajay Dogra, military training officer with the United Nations Department of Peacekeeping Operations, teaches Central Accord 2016 participants about U.N. functions and procedures June 14, at the Cooperative Security Location in Libreville, Gabon. U.S. Army Africa's exercise Central Accord 2016 is an annual, combined, joint military exercise that brings together partner nations to practice and demonstrate proficiency in conducting peacekeeping operations. (U.S. Army Africa photo by Staff Sgt. Candace Mundt/Released)

Indian Army Lt. Col. Ajay Dogra, military training officer with the United Nations Department of Peacekeeping Operations, teaches Central Accord 2016 participants about U.N. functions and procedures June 14, at the Cooperative Security Location in Libreville, Gabon. U.S. Army Africa's exercise Central Accord 2016 is an annual, combined, joint military exercise that brings together partner nations to practice and demonstrate proficiency in conducting peacekeeping operations. (U.S. Army Africa photo by Staff Sgt. Candace Mundt)