Iraqi police pray at the door of the Imam Ali shrine, one of Shiite Islam's holiest, which has served as a base for al-Sadr's fighters and been at the center of much of the three-week crisis in the southern Iraqi city of Najaf Friday Aug. 27, 2004. Guns were largely silent in Najaf on Friday for the first time in weeks, after Iraq's top Shiite cleric made a dramatic return to this holy city and swiftly won agreement from a rebel cleric and the government to end three weeks of fighting between his militia and U.S.-Iraqi forces. (AP Photo/Khalid Mohammed)