Vice Chairman of the Joint Chiefs of Staff U.S. Navy Adm. James A. Winnefeld Jr. attends the 2014 graduation ceremony for the National Defense University, including the College of International Security Affairs, the National War College, the Information Resources Management College and the Dwight D. Eisenhower School for National Security and Resource Strategy, at Fort Lesley J. McNair in Washington, D.C., June 12, 2014. Winnefeld gave the commencement address. (DoD photo by Staff Sgt. Sean K. Harp, U.S. Army/Released)