Shiite faithful pilgrims gather between the holy shrine of Imam Hussein and the holy shrine of Imam Abbas, in the background, during the preparations for the Muslim festival of Arbaeen in the Shiite holy city of Karbala, 50 miles (80 kilometers) south of Baghdad, Iraq, Friday, Dec. 12, 2014. The holiday marks the end of the 40-day mourning period after the anniversary of the 7th century martyrdom of Imam Hussein, the Prophet Muhammad’s grandson. (AP Photo/Hadi Mizban)