A political theorist teases out the century-old ideological transformation at the heart of contemporary discourse in Muslim nations undergoing political change.

In 2014, the declaration of the Islamic State caliphate was hailed as a major victory by the global jihadist movement. But it was short-lived. Three years on, t

From a preeminent scholar of Islamic history, the authoritative history of caliphates from their beginnings in the 7th century to the modern day In Caliphate, I

Discusses the Caliphate in the ideas and discourse of the Muslim Brotherhood, Hizb ut-Tahrir and al-Qaeda.

In the United States and Europe, the word "caliphate" has conjured historically romantic and increasingly pernicious associations. Yet the caliphate's significa