An Iraqi Shiite Muslim sits with a knife as he takes part in a traditional mourning event during Ashura commemorations that mark the killing of Imam Hussein, one of Shiite Islam's most revered figures, early October 1, 2017 in the holy city of Najaf. Ashura, commemorates the killing of Imam Hussein, the grandson of the Prophet Mohammed, by the army of the Caliph Yazid in 680 AD, the formative event in Shiite Islam. (Photo by Haidar Hamdani/AFP Photo)
