With their backs to the wall, ISIS fighters in the city of Mosul are using poison gas to try and hold off Iraqi forces.
The Daily Telegraph: Iraq troops face Isil chemical attacks in final battle for Mosul

With their backs to the wall, ISIS fighters in the city of Mosul are using poison gas to try and hold off Iraqi forces.
In the ruins of the Old City, residents who escape increasingly desperate militants are then faced with Iraqi troops suspicious of suicide […]
Mass graves and the survivors of massacres tell of the horrors inflicted on the Yazidi minority by ISIS.
Iraqi troops make heavy weather of retaking villages en route to first major objective of the campaign to liberate Mosul from ISIS.
But army’s efforts to reform ex-Taliban fighters will likely not be enough to eliminate extremist threat.