Alice Martini is Lecturer in International Relations at Universidad Complutense de Madrid, Spain. Her research focuses on counter-terrorism and prevention of extremism, specifically at a global level and as implemented by the United Nations. More in general, her research examines and deconstructs global discourses on security, (counter)terrorism and (counter)extremism, looking into the resulting practices of power and international hegemonies. She is the author of The UN and Counterterrorism. Global Hegemonies, Power and Identities (2021) and co-editor of, among others, Encountering Extremism (2020). Raquel da Silva is Assistant Professor of International Relations at the School of Economics, University of Coimbra and Integrated Researcher at CEI-Iscte. She is the author of Narratives of Political Violence: Life Stories of Former Militants (2019). Her research has been funded by the Portuguese Foundation for Science and Technology, the British Academy, and the European Union, among others.