A House Divided: Origins and Persistence of the Islamic State’s Ideological Divide

Last month, a jihadi Telegram user called “And Rouse the Believers” leaked a series of documents related to the Islamic State’s internal ideological rift. As discussed in a previous post, this dispute revolves around the doctrine of excommunication (takfir), and specifically whether those hesitating or refusing to excommunicate unbelievers are themselves to be excommunicated. Heading up the more moderate side in this debate was Turki al-Bin‘ali, the emir of the Islamic State’s Office of Research and Studies, until his death in an airstrike in May 2017. The more extremist side was represented by the Delegated Committee, the Islamic State’s executive council, until Abu Bakr al-Baghdadi reconstituted it late last year and instituted a theological compromise of sorts. “And Rouse the Believers,” whose name comes from Qur’an 4:84, is something of an anomaly: he is even more extreme than the extremists in this contest, believing that the Islamic State has lost