The Hofstad group is known mainly because of Mohammed B., the murderer of Theo van Gogh. PhD candidate Bart Schuurman examined this Dutch jihadist group based on interviews and confidential police files. How and why did the group come about? What drove some of the group members to commit terrorist…

Vincent Mul is deputy president on the board of The Hague Court of Appeal. Together with Jan Crijns, Professor of Criminal Law and Criminal Procedure, he stood at the cradle of the collaboration between Leiden Law School and The Hague Court of Appeal. ‘By joining forces, we all benefit.’

This project explores the religious lives of a Surinamese Hindu community practicing in Amsterdam at the Sri Radha Krishna Mandir from an interdisciplinary perspective.

A defining fixture of our contemporary world, video games offer a rich spectrum of engagements with the past.

This thesis attempts to interrogate post-1991-2015 political development in Ethiopia, focusing on the political discourses espoused by the government and opposition, using the discourse analysis method and securitization theory.

Leiden University endorses inclusiveness and diversity. It is open to all those who wish to study or work here, and to develop their full potential. The University is an open community where everyone who wants to contribute to its ambitions and to all that it stands for will feel at home and have equal…

On Thursday 11 November, Women in International Security Netherlands (WIIS-NL) held its inaugural webinar event on 11 November with four speakers in conjunction with the International Centre for Terrorism (ICCT) and the Chair UN Studies in Peace and Justice at Leiden University.

As terrorism scholars, we are intrigued by those who engage in violence. We study their motivations, tactics, ideology, organisational structures, and pathways to (de-)mobilisation, hoping to better understand terrorism and how we can counter it. Far less attention is paid to what happens after an attack…

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

Toch kan je volgens dr. Jelle van Buuren dader Tobias R. niet in een bepaald hokje plaatsen. Van Buuren is kenner van het rechts-extremisme en reageert in het Reformatorisch Dagblad op de passages van Tobias R.

Marieke Liem, Associate Professor, at the Institute of Security and Global Affairs, was interviewed by RTL Nieuws on Tuesday morning 27 August about the increase in violence with illegal hand grenades in the Netherlands.

The UK has recently been facing racist violence outbreaks. Tahir Abbas, Professor of Radicalisation Studies, discusses this in an article on Hyphen.

Nikki Sterkenburg, external PhD candidate at the Institute of Security and Global Affairs in The Hague, was interviewed by the NOS programme Nieuws & Co about the meeting of Thierry Baudet with Alt-Right movement Jared Taylor. 'If Baudet would have wished to stay aloof of this movement, he shouldn’t…

The European Research Council (ERC) announced the awarding of 494 Starting Grants to young scientists across Europe. One of these scholars is Corinna Jentzsch, Assistant Professor of International Relations at the Institute of Political Science. She received this grant for her research project ‘Countering…

Terrorist groups adapt to environmental changes to maintain power. This project provides new insights by developing a theory of strategic target selection and using big data analytics and machine learning to test these hypotheses.

Nerve pain is one of the most common side effects of chemotherapy. It is therefore one of the biggest reasons for cancer patients to stop treatment early. Darcy Reynolds worked on new drug candidates against this pain during her bachelor's thesis. She developed a new series of molecules that increase…

This article provides a comprehensive analysis of the Islamic State's use of images taken by drones, drawing on a dataset of ISIS propaganda images from October 2016 to December 2018.

Refugees’ effect on domestic terrorism is conditioned by host-country social perception (attitude about living next-door to foreigners) and economic competition. These hypotheses are tested cross-nationally from 1995-2014 leveraging data from the World Values Survey.

The Executive Board of Leiden University has asked the University Council to advise on its proposed decision to reactivate the person counters/sensors in due course. The Council will now look at this carefully before the Board makes a final decision. The advice of the University’s participation body…

Jeanine de Roy van Zuijdewijn, researcher and lecturer at ISGA, was a guest on NPO Radio 1 where she discussed the attacks carried out in 2011 by Anders Breivik.

The team of WIIS-Netherlands exists out of the board members and the advisory council.

What is neutron star matter?

Course, Training

The METIS instrument that’s being built for ESO's future Extremely Large Telescope (ELT) in Northern Chile under the leadership of the Dutch Research School for Astronomy (NOVA) has reached an important milestone: the preliminary design has been approved.

Leiden scientists will be working on the development of a camera for the European Extremely Large Telescope that is currently under construction. On 28 September the Netherlands Research School for Astronomy signed an agreement with the European Southern Observatory.

The Master programme MSc Crisis and Security Management is completely changed. Combined with three main courses for all CSM-students, this new programme offers exactly the combination of in-depth specialized knowledge and general knowledge about security challenges in a globalizing world society and…

The funerary textile tradition from the Osmore Valley, South Peru, and its social-political implications (2005)

On Thursday 11 November, Women in International Security Netherlands (WIIS-NL) held its inaugural webinar event on 11 November with four speakers in conjunction with the International Centre for Terrorism (ICCT) and the Chair UN Studies in Peace and Justice at Leiden University.

UnMiSSeD studies the interaction between misinformation and science in societal debates using a mixed qualitative-quantitative approach.

On 12 September 2024, the official ceremony opening the academic year 24-25 for students of the European Law master’s programme took place at Leiden Law School, organised by the Europa Institute.

The more than 370 sensors that have been hung up in Leiden University buildings to count the people present will not be switched on again. The equipment will eventually be removed from the buildings.

We are pleased to welcome three new colleagues at the Institute of Security and Global Affairs this month: Andrea Bartolucci, Joana Cook and Silvia D'Amato.

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.

This one-year, English-taught Master's programme offers insights on general developments as well as the specific challenges in the field of the governance of crisis and security, with in-depth knowledge of sub-fields of crisis and security management.

In the Master's programme Crisis and Security Management, you will study contemporary security challenges from both local and global points of view, gaining a deep understanding of the ‘wicked problem’ of security and crisis topics in a complex and globalising world.

In the Master's programme Crisis and Security Management, you will study contemporary security challenges from both local and global points of view, gaining a deep understanding of the ‘wicked problem’ of security and crisis topics in a complex and globalising world.

Your tuition fee depends on a number of factors, such as your nationality and your previous Dutch higher-education qualifications.

In the Master's programme Crisis and Security Management, you will study contemporary security challenges from both local and global points of view, gaining a deep understanding of the ‘wicked problem’ of security and crisis topics in a complex and globalising world.

In the Master's programme Crisis and Security Management, you will study contemporary security challenges from both local and global points of view, gaining a deep understanding of the ‘wicked problem’ of security and crisis topics in a complex and globalising world.

The main objective of this thesis was to develop clinically relevant survival models for patients with high-grade soft tissue sarcoma of the extremities, in particular the development and validation of prediction models for use in clinical practice.

To what extent does exoplanet Proxima b resemble our Earth? And is there some form of life present? Astronomers hope to find answers to these questions with the new European Extremely Large Telescope (ELT). An NWO research grant of €18 million will allow a Dutch consortium to continue building instruments…

This article explores how ISIS and the Taliban have fostered support through their parallel legal systems.

PhD defence

Why does one person radicalize to involvement in terrorist violence within a group-based context, while another engages in this form of violence alone?

This paper investigates possible convergence of issue salience of terrorism among citizens within the European Union for ten jihadist attacks in the period 2015–2017 using Eurobarometer survey data.

From 2012 onwards the primary scholarly and media focus in regard to foreign fighters has been on the large number of Westerners joining jihadist groups in Syria and Iraq. Yet, much less attention has been paid to another conflict in the ring around Europe that attracted foreign fighters: the Russo-Ukrainian…

This thesis is largely an experimental study on the formation of solid-state simple and complex organic molecules in the H2O-rich and CO-rich ice phases of dense interstellar clouds and dark cores.

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.