Investigate why and how people mobilise around group identities, as well as the institutional arrangements for resolving or reducing ethnic conflict.

Law and peace in the work of Hans Kelsen. A re-evaluation of Kelsen’s legal philosophy: legal pacifism as tacit meaning of his Pure Theory of Law

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

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

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 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.

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.

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…

New volume in the Jus Post Bellum series

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?

Lecture

PhD Defence

From 1 August 2018, Alanna O'Malley was appointed as Chair of United Nations Studies in Peace and Justice, focusing on the ‘lesser-known actors’ of the UN: women, the youth, the agents of informal diplomatic networks within the UN and actors from the Global South. This Special Chair has been created…

Perception of material culture, design and digital knowledge applications

How do cultural differences affect conflict escalation and the effectiveness of conflict interventions?

The specialization Peace, Justice and Development at Leiden University examines the legislation that governs international relations in a global society.

How can we solve value conflicts?

Is there a causal mechanism underlying the decision to attack another country when on the brink of war? If so, does this mechanism differ between regime-types? Political scientist Femke Bakker (Leiden University) addresses this question from a political psychological and comparative perspective and…

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

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

During this lunch seminar series all researchers from Leiden Law School can present their research. The idea is to hear in a simple and nice way what researchers from other research programs and institutes are working on. During a seminar two or three speakers will present their research.

Why do some parties fail to settle conflict, even after long periods of fighting? ISGA PhD candidate Valerie Sticher suggests that costly concessions often stand in the way of a negotiated agreement. Conflict party members not only care about their in-group's welfare, but also want to avoid rewarding…

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.

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

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

Physical Violence refers to violence related to criminal activities, violence perpetrated in interpersonal conflict such as in the domestic sphere, and socio-political violence. It ranges from mass shootings such as Columbine and Virginia Tech, to nighttime violence, alcohol-related violence, violent…

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…

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.

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

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…

This research project addresses an unexplored dimension of historical conflict resolution: the dynamics of strategic choices made by traders engaged in foreign trade in the city of Danzig (Gdansk) c. 1450-1580, a Hanseatic city under the Polish Crown.

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

This socio-legal research focuses on the impacts of environmental displacement on land rights and land-related conflict in Mozambique in the aftermath of cyclone Idai, and on the role of the legal framework in addressing these problems.

The Just Peace festival is coming up shortly. From 21 to 24 September we will be celebrating peace in The Hague with some inspiring HagueTalks, the Peace in the Park festival and the annual Peace Run.

This dissertation focuses on the production and consumption of a mediation show in China that collaborates with the local Justice Bureau and broadcasts on an entertainment channel—exploring answers to questions raised from the mentioned entertainisation, social and political, and cultural issues.

What can we learn from how maritime conflicts were managed in the past? What significance did Maritime Conflict Management have in shaping the standards of diplomacy and international law in pre-modern Atlantic Europe (1200-1600)?

On a referendum held on May 21, 2006, 55.5% of voters in Montenegro voted in favor of their country’s independence. While in numerical terms the outcome shows overwhelming support for independent Montenegro, from a normative standpoint it was a narrow win. The normative framework that regulated rules…

This new study by professor Peter Hoppenbrouwers focuses on conflict in village communities of late medieval Drenthe in order to depict a typical peasant society in late medieval Europe.

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?

Political scientist Femke Bakker (Leiden University) is going to investigate whether meditation affects political behaviour. Bakker has been awarded a PEACE Grant by the Mind & Life Institute, which enables her to conduct innovative, experimental research. The aim is an answer to the question whether…