ISIL and the Taliban

Al Jazeera gains unprecedented access to ISIL's central leadership and explores the threat it poses to the Taliban.

Raising its black flag over the rugged mountainous regions of Afghanistan, the Islamic State of Iraq and the Levant (ISIL) has emerged as a new threat to the war-ravaged country as it battles the Taliban for supremacy. 

Employing violence and brutality to impose its will ,  Wilayat Khorasan, (the ancient name ISIL has chosen for the region made up of Afghanistan, Pakistan and parts of neighbouring countries), has emerged in seven different areas and vowed to step up operations, where the veteran fighters - the Taliban - once held sway.