BEIRUT, LEBANON - OCTOBER 24: People are seen during a Ashura Day mourning ceremony which Secretary-General of Hezbollah, Hassan Nasrallah (not seen) gave a speech in Beirut, Lebanon on October 24, 2015. Ashura day, the tenth day of Muharram in the Islamic calendar, is well-known because of mourning for the martyrdom of Husayn ibn Ali, the second grandson of Muhammad, who was killed during the Battle of Karbala in 680. (Photo by Ratib Al Safadi/Anadolu Agency/Getty Images)