This volume contains the edition or re-edition of 52 papyri and ostraca, dating from between the third century BCE and the eighth century CE.

Dit deel bevat de editie of heruitgave van 52 papyri en ostraca, daterend uit de periode tussen de derde eeuw voor Christus en de achtste eeuw na Christus.

The LUCAS Impact Committee, consisting of Jan van Dijkhuizen, Rick Honings, Casper de Jonge, Angus Mol, Thijs Porck and Aafje de Roest, has offered this year’s LUCAS Public Engagement Award to Dorine Schellens and Peter Verstraten.

Tycho van Tartwijk is currently investigating the role that economic inequality plays in cooperation and conflict in within- and between-group settings. Specifically, he is interested in the way in which inequality affects discrimination (parochialism) in cooperation and conflict.

Edmund Frettingham is Assistant Professor in International Relations at Leiden University College. His primary research interests lie in security studies and religion in international politics, with particular focus on theories of security, approaches to the study of religion in international politics,…

Casper Wits is a University Lecturer in the Institute for Area Studies. His research focuses on postwar diplomatic and international history in East Asia, with a special interest in the development of Chinese and Japanse foreign policy and Sino-Japanese relations in this period. He also takes an interest…

On 10 December, the Intelligence and Security Research Group of ISGA had the honour of hosting Vice Admiral Peter Reesink for the inaugural Arthur Docters van Leeuwen Lecture.

Leiden University is switching to a new system for HR, finance and purchasing on 1 January 2026, after 27 years of using SAP. We spoke to Wouter Peters, Director of ASSC and Programme Director of BAS, about what this means for the university and you as a member of staff.

Hirad Rezaiejoo is a lecturer of Political Science and International Relations at the Institute of Political Science.

Matthew DiGiuseppe is an associate professor of International Relations and Director of Postgraduate Studies at the Institute of Political Science.

Michael Sampson is Assistant Professor of International Relations at the Institute of Political Science

Patrick Antenbrink participates as a PhD-candidate in the programme of the Dual PhD Centre in The Hague. Thesis working title: 'Public-private cooperation in intelligence and the influence on public accountability’.

Rob de Wijk is Professor of International Relations at Leiden University. Besides that, he is also chairman of the National Security Think Tank (Denktank Nationale Veiligheid) and columnist for the national daily newpaper Trouw and monthly for Energiepodium.nl.

Adva Eichengreen (alias Eichengrün) is a postdoctoral researcher in the Developmental and Educational Psychology unit of the Institute of Psychology at Leiden University.

Kai Hebel (DPhil, Oxford University) is Assistant Professor of International Relations. Dr. Hebel’s research interests include international security, diplomacy, international history, cultural studies and IR theory. He has published on a wide range of topics, including military intervention, the Cold…

John-Harmen Valk is a University Lecturer at the Leiden University Centre for the Study of Religion.

Sem Grootscholten researched the impact of civil servants on political decision-making and the change in relations between public and private parties in the educational material industry as a result of changing laws.

Daniel Schade is a Lecturer in European Studies and International Relations at Leiden University. His research focuses on the European Union and its external relations regime, in particular.

I am a South African IR scholar whose research interest is questioning Western-centric narratives and making sense of international relations from the perspectives of the global South, particularly Africa. Before joining Leiden University in 2017, I was based at the University of Cape Town, where I…

Daniel C. Thomas is Professor of International Relations at the Institute of Political Science at Leiden University.