U.S. soldiers retire the command colors during the ceremony marking the end of the U.S. military mission in Iraq in Baghdad, Dec. 15, 2011. U.S. soldiers retire the command colors during the ceremony marking the end of the U.S. military mission in Iraq in Baghdad, Dec. 15, 2011. SHARE: Download: Full Size (0.75 MB) Tags: Photo Essays Credit: VIRIN: 424132-N-FHC92-266.jpg Photo Gallery