PENTAGON MEETING U.S. Defense Secretary Robert M. Gates and U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, meet with U.K. Defense Secretary Liam Fox at the Pentagon, Sept. 22, 2010. SHARE IMAGE: Download Image: Full Size (0.05 MB) Photo By: VIRIN: 772940-Q-SJM28-333.jpg Photo Gallery