Adm. Mike Mullen addresses audience members at a ceremony. Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, U.S. Navy, addresses audience members at a ceremony honoring the 150th anniversary of the Medal of Honor in the Hall of Heroes in the Pentagon on March 25, 2011. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 691932-G-GTC89-393.jpg Photo Gallery