New insights for policy promoting peace and security in Europe and the world.

The debate about Africa’s changing relations with the world has rapidly evolved over the past decade. The initial emphasis on China’s role in Africa has given way to a more diversified approach, acknowledging that other emerging global players have also become important.

European policy affects our lives: from air quality to the frequency of a bus service. Leiden researchers analyse how the European Union functions, how countries apply European policy and whether this policy actually provides solutions and delivers.

Our Master Law in European and International Human Rights Law (LL.M.) looks at the various human rights protection mechanisms from a comparative perspective

In our European and International Business Law Advanced Master programme, you learn to decipher the hierarchy of European & international business law

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

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

This book is the first to incorporate current academic literature and case law on European, transnational, and international media law into a comprehensive overview intended primarily for students.

The EU and the World is a Jean Monnet Chair, awarded to Karolina Pomorska (Institute of Political Science, Leiden University). Its aim is to promote and strengthen teaching and research in European Studies in Leiden and in The Hague.

On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.

This paper series is the result of two rounds of PhD workshops organized by the editors at the TMC Asser Institute and Leiden University in 2024 on ‘The legal implications of the EU’s geopolitical awakening’, with the generous financial assistance of the Municipality of The Hague.

How do crises produce changes in specific European Union foreign policy areas, and how should we conceptualise these policy changes?

In this article, Madeleine Hosli, Professor of International Relations at the Institute of Security and Global Affairs, and Jaroslaw Kantorowicz, Assistant Professor at the Institute of Security and Global affairs, discusses the relevance of structural variables in a time where European politics are…

This edited volume offers a critical discussion of the trade-offs between transparency and secrecy in the actual political practice of democratic states in Europe. As such, it answers to a growing need to systematically analyse the problem of secrecy in governance in this political and geographical…

Cristina Grasseni’s project

In this article, Joris Larik and Richard Ponzio grasp the importance of the Summit of the Future to overhaul and strengthen multilateral cooperation in an age of deepening rifts and increasing competition between the great powers. This article argues that a failure to convene a meaningful and ambitious…

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.

How do chemical contaminants traverse and affect terrestrial biodiversity and ecosystems?

The annual excursion of the Adv. LLM programme in European and International Human Rights Law (EIHRL) took place from Sunday 16 to Saturday 21 April.

This book is the first comparative study of estimative intelligence and strategic surprise in a European context, complementing and testing insights from previous studies centred on the United States. It does extensive empirical analysis of open-source material and interviews in relation to three cases…

In this article, the authors analyse two major factors that deepen informality, namely multipolar geopolitics and the rise of non-state actors.

The Jean Monnet and Common Market Law Review (CML Rev) Launch Conference of the CML Rev extraordinary issue ‘EU values and interests in a time of geopolitical transformation’ was held on 10 April 2026 at the University of Zagreb, Croatia.

The emergence of new players on the world market such as India, Brazil, China, Turkey and the Gulf States gives Africans more choice in who they work with and under which terms. At the same time, African multinationals are choosing to work with regional partners and are thus furnishing old political…

This project will construct an inventory of possible conceptions of the resistance of the world to scientists’ claims and theories.

On 7 September 2023 Didem Durak Akser successfully defended a doctoral thesis and graduated.

Grasseni's contribution to this special feature on food cultures, food systems, and agriculture in Europe builds upon her ongoing project Food citizens? Collective food procurement in European cities: solidarity and diversity, skills and scale.

The place of European states and institutions in world politics is the core focus of this pillar. Research on this theme concerns European actors’ ability to promote peace, security and justice in their neighbourhood and to shape the future of global governance by translating its economic size into…

Organisations such as the EU are of enormous benefit to the member states, but the inhabitants of the member states are often unaware of this. Leiden researchers investigate whether international organisations such as the EU or ASEAN are able to influence global politics.

Who holds rights to Greenland’s surrounding waters and natural resources? Which interests are at stake and for whose benefit? We put these questions to Hilde Woker, who specialises in the law of the sea in the Arctic.

The European union, where we live, work and study, is the most ambitious and powerful regional organization for international cooperation in the world. A mystery to many and derided by some, the EU has weathered intense geopolitical and economic storms over the last two decades. In doing so, it has…

If we want to solve global problems, we need to know about both the theory and the practice. How does the international community make decisions about military intervention, for instance? Why is it such a complex process? Professor Herman Schaper has represented the Netherlands at the United Nations…

Dr. Gruni published an article on the impact on sustainable development in the EU Common Commercial Policy of recent Opinion 2/15 CJEU on the Global Trade and Customs Journal.

Social Information Processing in Children with and without Hearing Loss

The International Course on Water Use and Management in Cagayan Valley The Philippines (2011-2015)

This book examines the history of The Netherlands in a way that connects global processes to local developments.

The book addresses the question “How and why do people become involved in European homegrown jihadism?

The Master’s in European Union Studies at Leiden University offers students an opportunity to study the EU from multiple disciplinary perspectives.

This volume of Analecta Praehistorica Leidensia focuses on how local communities in prehistory define themselves in relation to a bigger social world.

This research profile area brings together descriptive, historical and theoretical linguistics, as well as psycho- and neurolinguistics.

This PhD project investigates the forms, functions, meanings, and socio-cultural values embedded in Palenda, in order to understand how it reflects and shapes the worldview of the Muna people (Mieno Wuna) through metaphor.

On 7 October, the Brussels Institute for Geopolitics was launched on the margins of an informal EU leaders’ summit in Prague. The initiative will provide a hub for high-quality research on Europe’s geopolitics, thus enabling the European Union to develop its strategic capacities.