CHIEFS OF DEFENSE U.S. Navy Adm. Michael G. Mullen, chairman of the Joint Chiefs of Staff, right, and Adm. William J. Fallon, commander, Central Command, greet Iraqi Gen. Babakir Zebari, chief of staff of the Iraqi armed forces, during the Central Command Chief of Defense Conference in St. Petersburg, Fla., Jan. 15, 2008. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 753331-O-BCJ09-822.jpg Photo Gallery