The Law of the European Union is a complete reference work on all aspects of the law of the European Union, including the institutional framework, the Internal Market, Economic and Monetary Union and external policy and action.

This article offers an inaugural assessment of how silences implicate international law-making in cyberspace through descriptive and normative lenses.

Grotius Dialogue

On 24 juni 2021, Jing Zhang defended his thesis 'The Rationale of Publicity in the Law of Corporeal Movables and Claims'. The doctoral research was supervised by Prof. H.J. Snijders and J.A. van der Weide.

The Institute for Philosophy at Leiden University is host to the NWO programme,

Which brain cell does what, when Parkinson's disease arises? It won't be long before this jigsaw is solved piece by piece. Ahmed Mahfouz, computational biologist, combines bio-knowledge from Leiden with algorithms from Delft and is getting closer to finding the key.

The debate about state behaviour in cyberspace may be set in the wrong legal key.

On 24 November 2016, Dr Giulia Pinzauti, Assistant Professor of Public International Law at the Grotius Centre for International Legal Studies, spoke on “The protective reach of the law of armed conflict” at the PIL Lunchtime Discussion Group at All Souls College in Oxford.

Should the law and norms applicable to armed conflict include a distinct category covering the transition from armed conflict to peace, jus post bellum, and if so what are its characteristics?

Many conflicts in Africa have been studied and described as location and time bound. Yet conflict is rarely confined and contained, and instead reaches across communities, borders, and generations.

On 18 June 2019, Neta Palkovitz Menashy defended her thesis 'Regulating a Revolution: Small Satellites and the Law of Outer Space'. The doctoral research was supervised by Prof. dr. P.M.J. Mendes de Leon and Prof. dr. G. Molier.

Matthias Haentjens, Jouke Tegelaar and Dorine Verheij have recently published the chapter Financial Market Regulation and Supervision in the new volume of the prestigious The Law of the European Union (previously Kapteyn and VerLoren van Themaat).

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?

Misinformation has emerged as a major societal concern. But why do citizens contribute to the dissemination of falsehoods online?

On 19 December 2019, Reza Eftekhar defended his thesis 'The Role of the Domestic Law of the Host State in Determining the ratione materiae Jurisdiction of Investment Treaty Tribunals: The Partial Revival of the Localisation Theory'. The doctoral research was supervised by Prof. E. de Brabandere.

On 26 and 27 September 2024, Leiden University's Grotius Centre for International Legal Studies hosted the H2OLAW conference entitled 'Law-science interfaces within the law of the sea and fresh water law’. The conference marked the launch of a multi-year research project led by Dr Hilde Woker and Dr…

How can we solve value conflicts?

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members investigate the drivers of political conflict and various types of crises. They study how citizens, political institutions and international organizations…

An effective and equitable approach to resource conflicts?

This research project addresses the ethical challenges and legal gaps regarding the operations of MNCs in conflict zones.

This edited volume explores how artificial intelligence (AI) is transforming international conflict in cyberspace.

We are pleased to invite abstracts for the conference ‘H2OLAW – Law-Science Interfaces within the Law of the Sea and Fresh Water Law’ hosted by the Grotius Centre for International Legal Studies, Leiden University. The conference will take place on 26 and 27 September 2024 at Leiden University in the…

Tens of thousands of soldiers and civilians have died as a result of Russia’s invasion of Ukraine in February 2022 and the continuing armed conflict. Many forms of critical infrastructure have been destroyed. Much of this devastation has been caused by weapons that utilise forms of artificial intelligence…

State fragility and conflict continue to be among the most enduring development challenges of the 21st century. The consequences of fragility and conflict on individuals, States and the international community are profound. At the individual level, an estimated 2 billion people or a quarter of the world's…

If a society is to be secure, sustainable and resilient, conflicting interests must be reconciled. Researchers at Leiden University study the behaviour of individuals, groups and states in relation to this issue, and use their knowledge to promote equality within and between communities.

This book is part of a series which sets out a restatement of labour law in Europe. Its second volume looks at atypical employment relationships in Europe.

How do descendants of survivors of violent conflict anticipate and respond to potential, future disaster – both potential new conflict and natural hazards?

Benjamin Scott, master student Air and Space law in Leiden, was given a unique chance by Professor Pablo Mendes De Leon. Benjamin was allowed to edited “The Law of Unmanned Aircraft Systems”. In close collaboration with the professor, staff of the International Institute for Air and Space Law at Leiden…

Due to its economic prosperity, its policy of (relative) religious tolerance, and its large numbers of migrants, the Dutch Republic has long had a reputation of being the prime example of ‘tolerance’, especially during the seventeenth century. Although the great variety of newcomers in the Dutch Republic…

The world is full of wars, and no war is without its dead. What happens to the bodies of fatal casualties of armed conflict? The winner of the faculty Jongbloed Thesis Prize 2015 is Welmoet Wels (Public International Law). Her thesis Dead body management in armed conflict: paradoxes in trying to do…

Violence during war often involves upswings and downturns that have, to date, been insufficiently explained. Why does violence at a particular point in time increase in intensity and why do actors in war decrease the level of violence at other points? Duyvesteyn discusses the potential explanatory variables…

The Covid-19 'infodemic' and conflict resolution by internet platforms.

NVIC welcomes Ahmed Hassan, a PhD candidate at Indiana University as a guest researcher.

The long awaited fifth edition of book ‘The Law of the European Union’ (formerly Kapteyn & VerLoren van Themaat) was launched on Friday 11 January 2019 at the T.M.C. Asser Instituut, The Hague.

The specialisation Global Conflict in the Modern Era of the master’s in International Relations at Leiden University engages you with the scholarly debates about global conflict today and in the recent past.

Large carnivore population is globally declining as a result of the fragmentation of habitat, large prey depletion and retaliatory killing by pastoralists.

While Nietzsche's works and ideas are relevant across the many branches of philosophy, the themes of contest and conflict have been mostly overlooked. Conflict and Contest in Nietzsche's Philosophy redresses this situation, arguing for the importance of these issues throughout Nietzsche's work.