Iraqi Shi'ite men, dressed as ancient Islamic warriors, ride horses in the town of Kerbala, some 110 km south from the Iraqi capital Baghdad, March 1, 2004. An estimated two million Shi'ites from Iraq, Iran, Pakistan and as far away as Canada have descended on the holy city of Kerbala to mark Ashura, which commemorates the martyrdom of Imam Hussein, grandson of the Prophet Mohammed, who was killed in battle more than 1,300 years ago. REUTERS/Faleh Kheiber OP/AA