Secretary Panetta talks to U.S. service members at the former Sather Air Base in Baghdad. Secretary of Defense Leon E. Panetta talks to U.S. service members at the former Sather Air Base in Baghdad during a ceremony that marked the end of Operation New Dawn on Dec. 15, 2011. Since 2003 more than 1 million have served in Iraq. Commander of U.S. and International Forces in Afghanistan Gen. John R. Allen (right), U.S. Marine Corps , also participated in the ceremony. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 817598-Z-RBB17-708.jpg Photo Gallery