The Mahdi Army was the feared Shia militia to murdered hundreds probably thousands of Sunnis and Christians hip a vicious religious war. Its battalion additionally attacked U.S. forces. Video: Soldiers coach in support of exit from Iraq It was run by the radical Shia member of the clergy Muqtada al-Sadr who vowed to facilitate he was an enemy of America to the very last globule of his blood. Al-Zamili was his right-hand male.