CONFERENCE COLORS U.S. Army Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, and British Gen. Sir David Richards, the U.K.'s chief of defense staff, stand with their joint chiefs during an honor guard ceremony at the National Defense University on Fort McNair in Washington, D.C., March 27, 2013. The military leaders gathered for a conference. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 018574-T-QZY58-937.jpg Photo Gallery