The Islamic State: Five Years Later

On June 29th, 2014, after the Islamic State captured Mosul, the goup's spokesman Abu Mohamed al-Adnani, shocked the world with the publishing of an audio message proclaiming the establishment of a “Caliphate”. Five years later, much has changed, as a number of military offensives have managed to free the territories that had been conquered by the Islamic State in Syria and Iraq. Despite losing its base and thousands of fighters, the threat posed by the jihadist group persists, as its affiliates and sympathizers around the globe continue to engage in propaganda and in violence.
How has the organization’s ideology evolved over time and how has this affected internal dynamics? What has happened to its leadership? And what is to be done with the thousands of jihadists and their family members who are detained in Syria and Iraq?