Edward Stourton and guests trace the rise, fall and legacy of the militant group which calls itself Islamic State. Is IS-style terrorism in the West now here to stay?
In July 2014, the Muslim cleric Abu Bakr al-Baghdadi addressed his followers as 'caliph', leader of a Muslim nation and successor to the Prophet Mohammed. It was the first time in almost a century that any significant figure in the Islamic world had claimed this ancient title, and it was a dramatic illustration that there was a powerful and terrifying new force in play: the radical Sunni Islamist militant group which calls itself Islamic State. Edward Stourton and guests trace the rapid rise, fall and legacy of the group.
Fawaz Gerges, Professor of Middle East Politics and International Relations at the London School of Economics
Patrick Cockburn, journalist and author of 'The Rise of Islamic State; ISIS and the new Sunni revolution'
Researcher: Louise Byrne
Producer: Ben Crighton.