PENTAGON BRIEFING Defense Secretary Robert M. Gates and Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, conduct a press conference at the Pentagon, June 16, 2011. Gates announced this would be his last time addressing the Pentagon Press Corps, and thanked them for their hard work. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 231405-X-HIA12-846.jpg Photo Gallery