Iraqi forces arrive in the town of Amerli to deliver assistance to the Shiite Turkmen-majority town after they broke a months-long jihadist siege of the by Islamic State (IS) fighters, on September 2, 2014. The Sunni extremist IS declared an Islamic "caliphate" in regions under its control in Iraq and Syria after it swept through much of the Sunni Arab heartland north of Baghdad in June and then stormed minority Christian and Yazidi Kurdish areas. AFP PHOTO/ ALI AL-SAADI        (Photo credit should read ALI AL-SAADI/AFP via Getty Images)