The Islamic State continued to acquire land in Iraq until the end of 2015, when opposing forces started pushing the militants out of the cities. It retreated from Mosul, its last urban center in Iraq, in July 2017. With the loss of Raqqa, the Islamic State’s remaining areas of concentration are mostly in Syria’s Deir al-Zour and Iraq’s Anbar provinces, and a few scattered pockets elsewhere.
Source: Washington Post October 17, 2017 18:22 UTC