The rapid expansion of ISIS & its swathe of territorial gains across the Middle East have been headline news since 2013. Yet much media attention & analysis has been focussed upon the military exploits, brutal tactics & radicalisation methods employed by the group. While ISIS remains a relatively new phenomenon, it is important to consider the historical & local dynamics that have shaped the emergence of the group in the past decade. In this book Simon Mabon & Stephen Royle provide the reader with a comprehensive overview of the roots, tactics & ideology of the group, exploring the interactions of the various participants involved in the formative stages of ISIS. Based on original scholarly sources & first-hand research in the region, this book provides an authoritative & closely-analysed look at the emergence of one of the defining forces of the early twenty-first century.