DEMPSEY'S KEYNOTE Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, delivers the keynote speech during the Reagan National Defense Forum at the Ronald Reagan Presidential Library in Simi Valley, Calif., Nov. 16, 2013. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 884314-E-PVN60-673.jpg Photo Gallery