DEFENSE MEETING U.S. Defense Secretary Robert Gates, center back, hosts a meeting with Pakistani Army Chief of Staff Gen. Ashfaq Kayani, third from left, and his military delegation at the Pentagon on Oct. 20, 2010. U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, and Michele Flournoy, undersecretary of defense for policy, joined the discussion. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 428722-Y-XVM90-274.jpg Photo Gallery