Iraqi Shiite Muslim leader Ammar al-Hakim, head of the Islamic Supreme Council of Iraq (ISCI), addresses a religious conference in the shrine city of Najaf on October 16, 2014, in which Shiite religious figures called for national unity and support to the government forces and fighters battling extremists of the Islamic State group in the war-torn country. AFP PHOTO/HAIDAR HAMDANI (Photo credit should read HAIDAR HAMDANI/AFP/Getty Images)