CAPSTONE REMARKS Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, speaks during a Capstone course at National Defense University on Fort Lesley J. McNair in Washington, D.C., July 14, 2014. The six-week course, which is mandatory for senior military officers, aims at making students more effective in planning and in employing forces in joint and combined operations. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 209262-T-GMJ63-761.jpg Photo Gallery