DEFENSE CONFERENCE U.S. Marine Gen. Peter Pace, chairman of the Joint Chiefs of Staff, addresses alumni of the Joint Civilian Orientation Conference and other community leaders during the Defense Orientation Conference Association at the Pentagon in Washington, Aug. 6, 2007. The association is a non-political, non-profit education organization whose primary interest is U.S. national security affairs. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 473861-O-LEW21-507.jpg Photo Gallery