This article on private active cyber defense by Dennis Broeders is part of a special issue of the Journal of Cybersecurity, based on a selection of contributions taken from the 2019 Conference on Cyber Norms organized by The Hague Program for Cyber Norms.

The UN International Law Commission was established soon after the Second World War with the mandate to promote the progressive development of international law and its codification. It is a subsidiary organ of the UN General Assembly.

Professor Nico Schrijver is professor of public international law at Leiden University and currently the president of the Institut de Droit international /International Law Institute, the most prestigious international law institute which was established in 1873 and which for the quality of its work…

A research team led by Dr. Yannick Veilleux-Lepage (Institute of Security and Global Affairs) in collaboration with Emil Archambault has secured funding from the Canadian Department of National Defence’s Mobilizing Insights in Defence and Security (MINDS) program to study the use of drones by violent…

To assess the impact of illicit firearms trafficking on gun violence, this research looks at the scope, characteristics and contexts of firearm violence, and also the scope and nature of firearms trafficking in Europe since the new millennium. Nils Duquet, Dennis Vanden Auweele and Marieke Liem created…

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

The combination of academic and professional skills taught in the CSM prepares you for a wide variety of careers in the rapidly expanding domain of security and crisis management, including public or private sector and policy-making positions.

In this policy paper, Joachim Koops and Christian Patz are discussing Germany’s comprehensive assessment of Protection of Civilians readiness at the national level.

A new paper written by Jolien van Breen, Soledad de Lemus, Russell Spears & Toon Kuppens in the British Journal of Social Pscychology examines the impact of the 2008-2012 financial crisis on national identity in Spain.

Up to 50% of all children and adolescents growing up worldwide are exposed to at least one form of childhood adversity (CA), which is one of the strongest predictors for later-life psychopathology.

After a successful pilot in 2016, the second edition of the International Arbitration Course took place at the end of August. The course is a tripartite collaboration between the Grotius Centre for International Legal Studies, the Department of Civil Law of Leiden Law School and the Permanent Court…

The project investigates the implementation of policies and practices related to reconciliation and the strengthening of government capacity in the Odesa and Kharkiv regions of Ukraine.

Smart digital infrastructures predicated on myriads of sensors distributed in the environment are often rendered as key to contemporary urban security governance to detect risky or suspicious entities before or during a criminal event takes place. At the same time, they often involve surveillance of…

Building on the recent initiative to truly globalize the field of international relations, this book provides an innovative interrogation of regionalism.

A large delegation from Leiden University’s Grotius Centre attended the annual conference of the European Society of International Law (ESIL) in Aix-en-Provence from 31 August to 2 September 2023. Staff members presented their research on various topics, adding to the scholarly discussion surrounding…

Strategic direction of the Europe Hub lies with a Steering Committee, composed of members from several Leiden University faculties.

From 1967 to 1982, the United Nations undertook several peacekeeping operations in the Middle East. In his thesis from the Institute for History, Diego Salama examines how these operations were connected and their impact on the region.

Since the late 1990s, Leiden University has been located in two cities: Leiden and The Hague. Leiden Law School is also involved in teaching and research at Campus The Hague.

The Hague is the international city of peace and justice, home to many international organisations, embassies and multinational corporations but also a fun student city filled with music, cafes, museums and the most popular beach in the Netherlands!

The Hague is the international city of peace and justice, home to many international organisations, embassies and multinational corporations but also a fun student city filled with music, cafes, museums and the most popular beach in the Netherlands!

The Hague is the international city of peace and justice, home to many international organisations, embassies and multinational corporations but also a fun student city filled with music, cafes, museums and the most popular beach in the Netherlands.

The Hague is the international city of peace and justice, home to many international organisations, embassies and multinational corporations but also a fun student city filled with music, cafes, museums and the most popular beach in the Netherlands!

The Hague is the international city of peace and justice, home to many international organisations, embassies and multinational corporations but also a fun student city filled with music, cafes, museums and the most popular beach in the Netherlands!

The Social Resilience & Security interdisciplinary programme broadens its scope by embedding two research projects lead by Dr. Joanne Mouthaan. The projects adress suicide prevention skills and mental health of Ukraine refugees. Both projects will be integrated in the programme with the aim to improve…

In this article for Studies in Conflict & Terrorism, the authors analyse the evolution and interplay of national policies and international diplomacy on cyber terrorism within and across the UNSC’s permanent five members and the UN process on cyber norms (GGE and OEWG).

The programme provides you for a succesful career. As a graduate, you will be qualified for positions within organisations such as international courts.

On the 1 June 2021, Professor Eric De Brabandere and Dr Daniel Peat of the Grotius Centre for International Legal Studies of Leiden Law School launched the Leiden Investment Treaty Arbitration Database.

The African, Caribbean, and Pacific Group of States (ACP) and the European Union have maintained a longstanding partnership known as the ACP-EU Partnership.

Global Transformations and Governance Challenges (GTGC) will hold its first international conference on 8-10 June 2022 in The Hague. Deadline submissions: 22 April 2022.

Sophie Vériter explores a small state’s impact on EU security governance, a hard challenge means against big states in this policy area.

Do you have a question about studying at leiden University or student life in The Hague? Do you want more information about the Crisis and Security Management programme? Chat with a current student for answers to your questions!

The amended Intelligence and Security Services Act (WiV) enacts a fundamental change in the relationship between the security services and politics. This carries the risk of politicisation of information, according to Professor Paul Abels. Inaugural lecture on 16 February.

Political scientist Corinna Jentzsch (Leiden University) about the organisation of rebel and government auxiliaries in the civil war in Mozambique (1976–1992).

Eva Michaels talks about the current international security environment, including intelligence issues with Sir John Sawers in an interview in El País.

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…

Lecture

The protection of civilians (POC) in armed conflict has become a core strategic objective for the United Nations system and for UN peace operations in particular. The UN, however, is not the sole actor engaged in POC.