Shi'a and Sunni Muslims make their way to the Imam Husayn Shrine in Karbala, Iraq, Feb. 27, 2008, during their pilgrimage in observance of the Arba'een and Ashura holidays. Only since the removal of Saddam Hussein have Iraqis been able to take part in the pilgrimage. (U.S. Navy photo by Petty Officer 1st Class Denny C. Cantrell) (Released)
Hundreds of Shi’a Muslims gather around the Husayn Mosque in Karbala after making the Pilgrimage on foot during Arba'een. Arba'een is a forty day period that commemorates the martyrdom of Husayn bin Ali, grandson of the Prophet Muhammad, and seventy-two of his followers at the Battle of Karbala in the year 680AD.