This handbook provides a theoretical and methodological exploration of the research on radicalisation and counter-radicalisation, one of the most influential concepts in Security Studies, International Relations, and Peace and Conflict Studies. Sitting at the heart of high profile research and policy agendas on preventing and countering violent extremism (P/CVE), radicalisation as a concept has transformed the way researchers, policymakers, and societies think about how to counter terrorism and political violence. Deliberations about radicalisation and countering radicalisation have become further embedded as efforts to prevent and counter violent extremism have been ‘mainstreamed’ into other areas of public policy and practice, such as education, gender relations, health, peacebuilding, aid and development. Theoretically and methodologically pluralistic, this handbook addresses radicalisation and countering radicalisation as they relate to a wide range of groups and milieus articulating diverse ideological positions, drawing together insight and experience from multiple geographic and institutional settings, integrating global perspectives and including scholarship focused on a range of policy fields. This book will be an essential reference point for anybody working on radicalisation or countering radicalisation, or on terrorism and political violence more broadly. The insight that it provides will be relevant both for academics and for members of relevant policy and practitioner communities.

President Obama has declared that the greatest terrorist threat which America faces is attacks by lone wolf terrorists. This volume expands the lone wolf rubric to include autonomous cells: small groups of terrorists who cooperate, but operate independently. The challenge presented by lone wolves and autonomous cells, unlike the threat emanating from established terrorist groups like Al Qaeda, has proven intractable because of the difficulty of gathering intelligence on these actors or effectively countering their actions. Lone wolves operate under the radar, staging deadly attacks such as that at the Boston Marathon, and the 2011 attacks in Norway. This volume includes Theory and Policy Studies, individual case studies and the technological impacts of chemical, biological and nuclear weapons as well as the impact of social media in the process of recruitment and radicalization. This book was originally published as a special issue of Terrorism & Political Violence.

President Obama has declared that the greatest terrorist threat which America faces is attacks by lone wolf terrorists. This volume expands the lone wolf rubric to include autonomous cells: small groups of terrorists who cooperate, but operate independently. The challenge presented by lone wolves and autonomous cells, unlike the threat emanating from established terrorist groups like Al Qaeda, has proven intractable because of the difficulty of gathering intelligence on these actors or effectively countering their actions. Lone wolves operate under the radar, staging deadly attacks such as that at the Boston Marathon, and the 2011 attacks in Norway. This volume includes Theory and Policy Studies, individual case studies and the technological impacts of chemical, biological and nuclear weapons as well as the impact of social media in the process of recruitment and radicalization. This book was originally published as a special issue of Terrorism & Political Violence.