In this article for Studies in Conflict & Terrorism, the authors analyse the evolution and interplay of national policies and international diplomacy on cyber terrorism within and across the UNSC’s permanent five members and the UN process on cyber norms (GGE and OEWG).

The corona crisis is also a disinformation crisis for the global community in general, and for the European Union (EU) in particular. What is less clear is how adequate the EU’s response to the ‘infodemic’ has been. This essay exposes the dangers of disinformation for the EU, which have intensified…

On Thursday 29 January 2026 Uğur Derin successfully defended a doctoral thesis and graduated.

The Board of Governors of Leiden University has confirmed the appointment of Professor André Gerrits (Institute for History, currently in the field of Russian Politics and History) to the field of International Studies and Global Politics, commencing October 1st 2015.

On 7 May 2020, Jolanda van der Vliet defended her thesis 'The International Legal Protection of Environmental Refugees. A human rights-based, security and State responsibility approach'. The doctoral research was supervised by Prof. N.J. Schrijver and Prof. J.J.C. Voorhoeve.

Gender sidestreaming? Analysing gender mainstreaming in national militaries and international peacekeeping

Organised in four separate sessions throughout the day, and broadcast live online to guests and families who could not join, a total of 260 students received their Bachelor’s Diploma of International Studies on 28 August 2020 at the graduation ceremony in the historic Pieterskerk in Leiden.

On 14 October 2019 the Institute of Security and Global Affairs (ISGA) convened a one-day International Business Diplomacy workshop, which was held under the auspices of The Hague Journal of Diplomacy.

What contributes to the successes and failures of governance networks in small to medium-sized Western European host cities in attracting International Organizations?

Hoe kan de City Deal Kennis Maken bijdragen aan het formuleren van maatschappelijk relevant onderzoek dat de stad in al haar diversiteit centraal stelt? In de stad Leiden zijn burgers momenteel maar in beperkte mate betrokken bij het bepalen van de agenda van de lokale City Deal Kennis Maken. Dit onderzoeksproject…

The US attack and the arrest of Venezuelan President Maduro have raised questions worldwide. Two Leiden experts in international law, Anna Marhold and Jens Iverson of the Grotius Centre, told media outlets that this constitutes a violation of international law.

On September 20 and 21, a conference on the governance of international courts and tribunals took place at Leiden Law School.

Since its inception, a central preoccupation of and for the International Criminal Court (ICC) has been the nature of its relationship to national jurisdictions. Complementarity—the idea that the Court is intended to supplement, not supplant, national jurisdictions—has been the dominant juridical logic…

James Shires has contributed a chapter to the proceedings of the 13th International Conference on Cyber Conflict (CyCon 2021), which gathers 20 articles from the law, technology and strategy domains.

Organised in three separate sessions throughout the day, and broadcast live online to guests and families who could not join, over 200 students received their Bachelor’s Diploma of International Studies on 3 September 2021 at the graduation ceremony in the historic Pieterskerk in Leiden.

On 9 January 2019, Marieke Wierda defended her thesis 'The Local Impact of a Global Court: Assessing the Impact of the International Criminal Court in Situation Countries'. The doctoral research was supervised by Prof. dr. C. Stahn en Prof. dr. L.J. van den Herik.

The Grotius Centre for International Legal Studies is offering two internships on a full-time basis in spring 2019.

Leiden Law School’s Grotius Centre for International Legal Studies is pleased to announce its first massive open online course (MOOC). On 18 January 2016, International Law in Action: A Guide to the International Courts and Tribunals in The Hague will go live on Coursera, an education platform that…

Three years after the very first cohort of the Leiden University Bachelor of International Studies graduated, approximately 40 alumni and staff got together for a day of recollecting pleasant memories and sharing new stories. The BAIS Alumni Board collected some ‘Lessons learned’ from their alumni.

The Kalshoven-Gieskes Forum on International Humanitarian Law and the Grotius Centre for International Legal Studies hosted the second annual “International Humanitarian Law Clinic Exchange Conference”, from 8 to 14 December 2016, in The Hague. The idea to organize the conference stems from a collaboration…

Complex systems can be characterized as systems in which multiple components interact with each other, often in non-linear ways. The main goal of this research will be to investigate if and how the international tax system can be defined and modelled as a complex system. Approaching the international…

Peak Performance: Collaborative Crisis Management Before and During International Summits. This comparative case study probes into conditions for collaborative governance in the security organisation of international summits.

On 19 juni 2018 Matthew Gillett defended his doctoral thesis ‘Prosecuting environmental harm before the international criminal court’. His supervisor is prof. dr. L.J. van den Herik.

The Ghent Rolin-Jaequemyns International Law Institute (GRILI) is a research institute within the Faculty of Law at Ghent University. Founded in 2015 at the initiative of Prof. Tom Ruys, the Institute brings together the existing expertise within the law school in the broader international law domai…

On 2 September 2022, 300 students received their Bachelor Diploma of International Studies. The students were awarded their diplomas in the historic Pieterskerk in Leiden, in front of a large audience of family and friends. With about 1000 people present, including the graduates, the International Studies…