Nick Vaughan-Williams is Professor of International Security and Head of the Department of Politics and International Studies at the University of Warwick, UK. From 2016 to 2019 he holds the Philip Leverhulme Prize for outstanding research in Politics and International Relations. His programme of research, supported with grants from the British Academy, UK Economic and Social Research Council, and Leverhulme Trust, focuses on the relationship between sovereignty, subjectivity, and the spatial dimensions of security particularly the changing nature of borders and bordering practices in global politics. His book Border Politics: The Limits of Sovereign Power (2009, 2012) was Gold Winner of the Association for Borderlands Studies Book Award. He is co-author of Critical Security Studies: An Introduction (2010, 2014) and Everyday Security Threats: Perceptions, Experiences, Consequences (2016).