How to reduce aggression when two parties are at odds? PhD research by psychologist Lennart Reddmann's shows that it can help to offer them a peaceful alternative. However, the attacking party benefits the most from such a solution.

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.

Both on a personal and institutional level, the staff of Leiden CADS collaborates with:

Study why and how, in countries around the world, people mobilize around ethnic, racial, religious and social identities, and explore the role of political institutions in mitigating conflicts that arise from such mobilization.

This master’s programme focuses on understanding the causes and consequences of armed conflict between states and within states. In addition, we explore whether and how local, national and international actors and institutions can forge cooperation, prevent political and armed conflict from emerging,…

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

Shah recently wrote an op-ed for the Commentaries series of the Istituto Affari Internazionali in Rome, which has been published online. The piece is on India’s performance and priorities regarding the UN sustainable development goals (SDGs) and collaboration with the EU.

A comprehensive analysis of Nietzsche's conception of conflict and the way in which relations of struggle condition the organisation of complex systems (with a specific focus on the human psyche and the body politic).

On 19 May 2020, Xuechan Ma defended her thesis 'Moving towards Coexistence and Cooperation: The Spratly Islands and International Law'. The doctoral research was supervised by Prof. N.J. Schrijver.

On 21 March 2019, James Welch defended his thesis 'The Grotius Sanction: Deus Ex Machina. The legal, ethical, and strategic use of drones in transnational armed conflict and counterterrorism'. The doctoral research was supervised by Prof. dr. P.B Cliteur.

This specialisation offers a structured, challenging curriculum balancing substantive and skills-oriented courses, including a number of elective seminars, plus a research thesis.

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.

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…

Cultural Anthropology and Development Sociology

As our society becomes increasingly complex, it is critical that we better understand how we can deal with fundamental issues such as societal and personal security, and resilience against threats to our security.

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

This book explores how changes in the patterns of cooperation and conflict among states, regional actors and transnational non-state actors have affected the rise of emerging global powers and the suggested decline of US leadership. Scholars, students and policy practitioners who are interested in the…

In this programme, you will follow a core course and thesis seminar on international politics, as well as elective seminars. Furthermore, you will work on your academic and professional skills, as well as acquaint yourself with the state-of-the-art in Political Science.

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

How can we solve value conflicts?

An effective and equitable approach to resource conflicts?

What are the mechanisms involved in the reconciliation of value conflicts and which interventions are capable of resolving such disputes?

Leiden University has long had a special interest in and relationship with China.

On Wednesday 9 March 2016, NWO-WOTRO organized a Sustainable Development Goals (SDG’s) routeworkshop in the framework of the National Research Agenda.

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

Indonesia is, and has long been, an important object of study for academics in Leiden in a wide range of disciplines.

Firearms and violence in Europe–A systematic review by Katharina Krüsselmann, Pauline Aarten, Marieke Liem

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.

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…

This article studies the influence of framing on preferences for cooperation with the EU.

In this publication, May Tamimova and Tahir Abbas researched the existing literature about violence and hatred against places of worship.

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?

Leiden University has signed a substantial number of Memoranda of Understanding with institutions in Latin America and the Caribbean Region.

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

This research programme seeks to understand the dynamics in the relationship between social media, mobile telephony and the social fabric under duress in Africa's mobile margins. It combines studies on mobility/migration, conflict and communication in an attempt to uncover these new dynamics, which…

Tom Buitelaar is an Assistant Professor in the War, Peace & Justice program of the Institute of Security and Global Affairs. This paper suggests a number of important avenues for states, the UN, and the ICC to improve the likelihood that the ICC receives assistance from UN peace operations.

This study adds nuance to the empirical literature that interrogates the link between exposure to mass violence and post-conflict justice preferences.

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…

What is the population size and social structure in time and space? What is the lion diet and food preference in time and space? What is the home range (MCP and Kernel) and movement in time and space? What are human – lion conflict and responses of lions to traditional herding in time and space? What…

Are there general principles or values that should govern our actions as moral agents and/or as political subjects?

Can you imagine a radically different world? In our times dominated by neoliberal capitalism, we seem to lack not only viable alternatives, but also the capacity to envision anything outside of the status quo.