Kurdish soldiers
Media playback is unsupported on your device
Video

On the ground with Kurdish forces in Aleppo

The BBC gains exclusive access in Aleppo province, where Kurdish forces have seized most of the border with Turkey from Islamic State fighters.

Kurdish forces in northern Syria have seized most of the border with Turkey from Islamic State.

The US-led coalition has been supporting the Kurdish ground offensive with air strikes.

Feras Kilani had exclusive access to the troops in Aleppo province.