IRAQ EVENT U.S. Defense Secretary Leon E. Panetta speaks at the ceremony to mark the end of the U.S. mission in Iraq in Baghdad, Dec. 15, 2011. U.S. Gen. Martin E. Dempsey, left, chairman of the Joint Chiefs of Staff, U.S. Marine Corps Gen. John R. Allen, commander of U.S. and international forces in Afghanistan, and U.S. Army Gen. Lloyd J. Austin III, commander of U.S. Forces Iraq, listened to Panetta's remarks. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 927105-Z-WER00-665.jpg Photo Gallery