A banner reading "Danger, explosion!" is attached to a burned car in Baghdad. AHMAD AL-RUBAYE/AFP/Getty Images/AFP hide caption
The Al Basrah Oil Terminal is seen in July. Spc. Frank Smith/U.S. Army hide caption
FILE - In this Oct. 18, 2006 file photo, Iraqi Prime Minister Nouri al-Maliki walks through central Najaf. Alaa al-Marjani/AP hide caption
A U.S. Army soldier rides inside a mine-resistant vehicle, or MRAP, on Friday, June 27, 2008. MAYA ALLERUZZO/AP hide caption