How is it possible that people kill each other? And above all: how is it possible that people who are able to peacefully live with each other at one moment, can kill each other at another one?

In the track War and Peace Studies, you will gain a thorough understanding of the history, theories as well as the contemporary and future policy challenges related to war, warfare, and the multidimensional promotion of peace.

The research group War, Peace and Justice brings together scholars, researchers as well as current and former practitioners to explore issues related to the drivers, nature and (new) dynamics of war and conflict, comprehensive approaches to the promotion of sustainable peace, and the role of justice…

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

Tom Buitelaar assesses how 'agency' is addressed in peacekeeping studies and identifies gaps.

In this article, Jasmijn Boeken, explores in which ways the defining characteristics of the different zones can be found in the digital sphere.

The Women, Peace and Security (WPS) agenda arising from United Nations Security Council Resolution 1325 has reached a critical juncture in its short 20-year history. Despite comprising ten resolutions designed to bolster the agenda and expand its scope and normative power, serious challenges to the…

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…

This project maps the policy of ‘Paz Total’ (Total Peace) and ongoing peace negotiations between non-state armed groups and the government of Colombia under the presidency of Gustavo Petro (2022-2026).

On the brink of war, what influences decision makers to attack another country? Using innovative theoretical angles, Femke E. Bakker explores whether the basic assumptions of democratic peace theory are indeed correct. She stresses the microfoundations of conflict, questioning the assumptions on…

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

Are you thinking about studying Crisis and Security Management: War and Peace Studies? Learn more and watch the videos.

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…

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…

Perception of material culture, design and digital knowledge applications

Study information

Study information

The Peace Run was held in The Hague on 14 September as part of the Just Peace festival. The event aimed to gather funds for UNICEF the Netherlands. A large team from Leiden University took part in the Run. Altogether a successful day!

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…

On 17 March 2023, GTGC co-organized an event on Inclusive Peace in Ukraine together with Leiden University College, the Institute of Global Affairs at Leiden University, the UN University of Peace, and Peace Analytics. The event discussed the peace process in Ukraine and uncovered views from both theory…

‘Realising we have shared ancestors and that our past is dynamic makes us more accepting of others.’ Sada Mire is an archaeologist at Leiden University and a former refugee – she fled from the civil war in Somalia. At the HagueTalks night during the Just Peace Festival, she will share her thoughts on…

Femke Bakker, political scientist at Leiden University, has been awarded a grant from the IPRAF (International Peace Research Organization Foundation) for her PhD research into the influence of political culture of different political regimes on individuals of these societies.

The Institute of Security and Global Affairs (ISGA) recently received a grant from the German Ministry of Defence to advice on how to strengthen Germany’s approaches to the protection of civilians in UN peace operations.

Who doesn’t want peace? Yet we don’t always appreciate how fragile it really is. This is why Leiden University was a co-organiser of the Just Peace Festival from 21 to 25 September 2016.

What are you going to do for peace and justice? What will your contribution be to achieving the UN Sustainable Development Goals? And who or what do you need to make sure your idea has impact? Come to Humanity House in The Hague on 21 September.

On Friday 1 April 2022, Tom Buitelaar presented his work to the Conflict, Peace and Security thematic area during a research feedback seminar. The title of his work was 'the Agency of Individuals in UN Peace Operations.'

On 5 November 2021, GTGC Conflict, Peace and Security thematic group organized a research seminar about Migration across the Mediterranean. In this seminar, Eugenio Cusumano from the Institute of History at Leiden University, presented a paper on Migration across the Mediterranean.

On 10 December 2021, the GTGC Conflict, Peace and Security thematic group organized a research seminar. In this seminar, Tahir Abbas, from the Institute of Security and Global Affairs at the Faculty of Governance and Global Affairs, presented a draft on ERC grant application on the inter-generational…

On 1 October 2021, GTGC Conflict, Peace and Security thematic group organized a research feedback session. In this session, Hilde van Meegdenburg's from Leiden University presented a theory chapter for her planned book about the Narrative Basis of Foreign Policy: On the use of Private Military and…

War and peace studies. A topic that is more relevant than ever because of the war in Ukraine. In September, the MSc Crisis and Security Management (CSM) will start a new track: War and Peace Studies. CSM’s Programme Director, Ernst Dijxhoorn, discusses the new track, how it was created and what students…

On 23 September, the Leiden alderman for the Management of Public Space was presented with a Ginkgo Biloba in the Blekerspark. This special 'Peace Tree' was grown from a seed from a tree that survived the atomic bomb that devastated Hiroshima. The Peace Tree is being temporarily housed in Leiden's Hortus…

The imprisoned leader of the Kurdistan Workers’ Party (Partiya Karkerên Kurdistan, PKK), Abdullah Öcalan, called for a peace settlement between Turkey and PKK on 28 February 2015.

On 6 May 2022, Alies Jansen presented her work on 'Security Force Assistance in Iraq' to the Conflict, Peace and Security thematic area during a research feedback seminar.

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.

On Friday 4 March 2022, Matthew Hoye presented his work on 'OFAC’s War in Afghanistan: Two Theories on Famine and Sanctions' to the Conflict, Peace and Security thematic area during a research feedback seminar.

On 11-13 November, Dr. Joris Larik, Assistant Professor for Comparative, EU, and International Law at LUC The Hague, took part in the inaugural Paris Peace Forum. The Forum is a new annual gathering focused on tackling global challenges through international cooperation launched by French President…

Every year, the city of The Hague and its partners organise the Peace Run. This year a mixed team of staff and students from the Faculty of Governance and Global Affairs (FGGA) will take part! The aim of the Peace Run (a 5 or 10km run linking various peace related institutions in the city) is to raise…

Benoeming Willemijn Aerdts tot lid permanente commissie Vrede en Veiligheid

The AI research in the area of peace, justice and security at each of the three universities in Zuid-Holland complements the AI research being performed by the other two. Three researchers explain. Part one in a series of five about themes that the three universities’ AI research covers.

On 9, 11 and 13 October the ‘The Hague Peace Conference Simulation’ took place at the Wijnhaven building of Leiden University.

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.

Prof. Carsten Stahn, Professor of International Criminal Law and Global Justice and Programme Director of the Grotius Centre for International Legal Studies in The Hague, explores some of the connections between just post bellum and peacebuilding, based on findings of the Jus Post Bellum project and…

On 20 November, Special Professor of United Nations Studies in Peace and Justice, Alanna O'Malley, presented her research agenda for the next 3 years. An ambitious agenda full of projects to gain more insight into the origin and functioning of the UN.

Den Haag is de stad van vrede en recht. Rondom deze thema’s organiseren culturele en maatschappelijke organisaties het festival. De Universiteit Leiden is nauw betrokken bij de organisatie. Universitaire medewerkers en studenten doen bijvoorbeeld mee aan de Vredesloop, Marieke Liem van het Institute…

The Hague Diplomacy Blog is the new monthly blog of The Hague Journal of Diplomacy (HJD), the ISGA-based research journal for the study of diplomacy.

The International Day of Light (IDL) celebrates the ubiquitous role light has in our lives. From Argentina to South Africa, Japan and Pakistan, several events have taken place across all continents on May 16. The date is a token for people around the globe to connect with the importance of light in…