As the Islamic State group tries to expand and take root across the Middle East, it is struggling in Syria — part of its heartland — where it has stalled or even lost ground while fighting multiple enemies on several fronts.
Signs of tension and power struggles are emerging among the ranks of its foreign fighters.
14:04 Turkey unleashing fury of airstrikes against US-backed Syrian Kurdish forces
23:24 Evidence of a ‘difficult fight’ ahead as forces move toward ISIS-held Mosul
01:24 Battle for Mosul Tests Obama Strategy to Shift Fight’s Burden From U.S5 5
09:07 ISIS Occupiers in Mosul Will 'Fight to the Death'