Daniel Koehler is Director of the German Institute on Radicalization and De-Radicalization Studies. He specializes in research on terrorism, radicalization and deradicalization. He is the Editor in Chief of the Journal for Deradicalization. Miroslav Mareš is Professor of Political Science at the Faculty of Social Studies of the Masaryk University in Brno. He specializes in research on violent extremism, hybrid threats and security policy, particularly in Central and Eastern Europe.