Members of the Saraya al-Salam (Peace Brigades), a group formed by Iraqi Shiite Muslim cleric Moqtada al-Sadr, brandish their weapons in Iraq's holy city of Najaf as they prepare to reinforce government forces in the fight against the Islamic State group for control of Fallujah, east of the capital, on May 17, 2016. Iraqi security forces and allied fighters have regained significant ground from the jihadists, securing the Ramadi area earlier this year and retaking the town of Heet last month. But parts of Anbar -- including Fallujah -- are still under IS control, as is most of Nineveh province, to its north. / AFP PHOTO / HAIDAR HAMDANI