You can ask virtual assistant Siri about the weather, but you can’t have a real conversation with it yet. You can’t refer to anything that’s been said before, or ask the system why it says what it says. Stephan Raaijmakers, Professor by Special Appointment from TNO, hopes to change this.

Political Scientist Gisela Hirschmann (Leiden University) asks how international organisations can be compelled to comply with respect human rights. She finds that this is done through ‘pluralist accountability’: external third parties such as courts, NGOs, or regional organisations holding international…

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…

PhD defence

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.

Are you thinking about studying European and International Business Law? Learn more and watch the videos.

Are you thinking about studying this Advanced LL.M. International Dispute Settlement and Arbitration? Learn more and watch the videos.

This master specialization offers you a combination of theories about learning problems and impairments and intervention and prevention strategies from a developmental perspective.

The International Institute of Air and Space Law (IIASL) offers PhD candidates the possibility to enroll in the IIASL PhD Track. It is designed for 'external' PhD candidates (buitenpromovendi), who seek to pursue a PhD in Air Law or Space Law while honouring their professional commitments in paralle…

Jens Iverson, Assistant Professor of International Law and a Researcher in the Jus Post Bellum Project, defended his Ph.D. dissertation on 21 September 2017.

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.

This book questions the accepted origins of the field of International Relations (IR). Commonly understood to have emerged from the horrors of WW1 with the goal of bringing about world peace, the authors argue that on the contrary, IR came from a somewhat less noble tradition – that of the Round Tab…

National and international actors have attempted to provide accountability for the events at Srebrenica in July 1995. This research project aims to draw lessons learned from those multiple efforts in assessing whether securing a measure of ‘justice’ for the victims has been successful and how national…

Study information

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How can we assist Universitas Indonesia's department of International law to improve their educational and applied research programs on Transnational Law, Asset Recovery and International Investment Arbitration, with an eye on Indonesia’s security and rule of law reform agenda and the needs of the…

The development of space resource activities is happening now. In the absence of a clear framework to govern these activities, there is a need to examine the concepts that are being discussed in order to ensure that they meet existing treaty obligations regarding on-orbit operations and space resource…

This inaugural lecture discusses the question: How to cooperate in the digital era?

ISBA2025

If an algorithm has to learn to understand language, simply having a lot of data doesn’t help much. Like us, a computer has to learn the language in interaction with others. Tessa Verhoef is fascinated by how this interaction works.

In the last weeks, ASEAN published different Statements about the human rights situation in Myanmar and the Democratic People´s Republic of Korea (DPRK).

Tan, former PhD candidate Grotius Centre for International Legal Studies, received the award for the best dissertation with his thesis on armed conflict, international humanitarian law and human rights law.

Find out all you need to know about a visa and residence permit application with a member of the Admissions Office

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

To celebrate the end of the semester the Science and Humanities Buddy Programme organised a barbecue together, which has become a small tradition. The barbecue marks the third co-organised activity between the two Programmes and helps to bring international and Dutch students together. The Buddy Programme…

The Sackler Distinguished Lecture Series on Human Rights was established at Leiden University through an endowment given by Dr. Raymond R. Sackler and his wife, Beverly, international philanthropists with a commitment to supporting scientific research. The lectures mark the annual celebration of International…

The central question is whether the current regime of international humanitarian law governing the conduct of hostilities in armed conflict is still adequate to deal with modern conflict scenarios, or whether it needs revision or amendment.

Are you thinking about studying Global Conflict in the Modern Era? Learn more and watch the introduction video.

Study information

Alumna Nadeshda Jayakody (25) from Australia graduated cum laude in Human Rights Law. What did she learn in Leiden that has been most useful? ‘I had to pretend that I already worked for an NGO.’

Since the emergence of humankind people have maintained social contacts and traveled widely, establishing interaction networks in which goods are traded and ideas are transmitted, increasingly on a global scale.

Read more about the International Network Open Science & Scholarship Communities in our Vision and Mission statements.

Maritime conflict management is the regulation of conflict in relation to the sea. It comprises conflict enforcement, conflict resolution and conflict avoidance. How did victims of maritime conflicts claim and obtain damages or demand compensation or reparation?

Promotor: J.P. Abrahams, Co-Promotor: N.S. Pannu

Leiden University and the Municipality of Leiden will develop new plans for an alternative Humanities Campus in the city centre. This means they will not proceed with the compulsory purchase of the De Doelen housing complex to facilitate the construction of the new Humanities Campus. The plans to demolish…

On 24 January an interdisciplinary workshop organised by Anna Smulders, PhD candidate at the Grotius Centre for International Legal Studies, and Tarlach McGonagle, Professor of Media Law and Information Society, took place on the interaction between disinformation, emerging technologies and human rights.…

This article traces the evolution of interpretations of international law and international cyber norms on responsible state behaviour in cyberspace by reassessing five major – and allegedly state-led – cyber operations: Stuxnet 2010; Belgacom 2013-2014, the Ukrainian power grid 2015, the US presidential…

The Faculty of Humanities is ranked 25th within the subject area 'Arts and Humanities' in the Times Higher Education Ranking (THE) of 2014-2015. The faculty scores particularly high in teaching, research and international outlook.

Humanities Faculty Leiden occupies a 49th place in the field of Arts & Humanities in the QS World University Ranking. Especially the subject areas Linguistics and History & Archeology rank high, with respectively a 26th and 28th place. Leiden University has fallen by one place in the annual QS World…