This book presents the findings of a large-scale interdisciplinary research network in Germany, involving more than 100 scholars who studied the phenomenon of Islamism from 2020 to 2025. The contributions examine the root causes of radicalization, its societal repercussions, and political, media, and civil society responses to it. The book integrates practical approaches and in-depth case studies on prevention and intervention, sharing findings from a wide range of disciplines in the humanities and social sciences. By combining empirical research with theoretical reflection, it offers valuable insights for academics, policymakers, and practitioners working in the fields of radicalization, security, and social cohesion — beyond the German context.

Shaimaa Abdellah is a Researcher in the transfer project “RADIS – Societal Causes and Effects of Radical Islam in Germany and Europe”and a fellow at the research department Transnational Politics at PRIF - Peace Research Institute Frankfurt (Germany).

Sina Tultschinetski is a Researcher at PRIF (Germany) in the research department Transnational Politics and leads  the RADIS transfer project.

Dr. Julian Junk is a Professor of Extremism and Extremism Resilience and heads the Research Center on Extremism Resilience at the Hessian University for Public Management and Security (HöMS), as well as the Research Group Radicalization, Terrorism, and Extremism Prevention at PRIF (Germany) and the RADIS transfer project.

Manuela Freiheit is a Research Associate in the RADIS transfer project at the Institute for Interdisciplinary Research on Conflict and Violence (IKG) at Bielefeld University (Germany).