This research paper seeks to examine the nature of the nexus between right-wing extremism and the military by surveying five potential consequences (i.e., problem areas) arising from the presence of right-wing extremists within the armed forces of twelve Western countries.

Mateo Cohen (research assistant at the Open University of Israel and PhD candidate at Leiden University’s Institute of Political Science) studied arguments articulated by diverse members of the Right-Wing elite in Israel and explains how these views lead to the rejection of a two-state solution and…

This book presents an understanding of the concept of Countering Violent Extremism from a critical terrorism studies perspective using case studies from different countries while examining the issues it raises.

In an essay in Dutch magazine 'Vrij Nederland' Nikki Sterkenburg, external PhD candidate at the Faculty of Governance and Global Affairs, discusses how radical and extreme right voices have become mainstream over the last twenty years. Sterkenburg brings up several reasons why the prevailing stigma…

In the track Governance of radicalism, extremism and terrorism you will be familiarised with the academic debate regarding these contested concepts.

This online advanced summer programme, organised together with the International Centre for Counter-Terrorism – The Hague (ICCT), provides insight into the opportunities and challenges of various approaches to prevent, detect and respond to violent extremism.

This online advanced summer programme of Leiden University and ICCT focuses on the field of preventing, detecting and responding to violent extremism and gives insight in the opportunities and challenges of various approaches.

With the recent rise and fall of IS, academics and policy makers around the world are expressing concerns about the fate of children of former foreign fighters. Will they follow in their parents’ footsteps? In this paper, Layla van Wieringen, Daan Weggemans and Marieke Liem argue that in light of this…

The design for the METIS instrument for the Extremely Large Telescope (ELT) is final. The European Southern Observatory (ESO) has given the green light for production of all parts of the instrument. It is the first ELT instrument, designed and to be built under Dutch leadership, to formally pass the…

What are the mechanics of soft materials (e.g. foam, sand)?

Investigating neurobiological endophenotypes of Social Anxiety Disorder

Research has shown that terrorist attacks in the US are more often committed by right-wing extremists than by islamitic extremists. However, news about attacks by right-wing extremists hardly ever reach the media. Jelle van Buuren tells the Dutch newspaper Trouw that right-wing extremists are at least…

This paper critically compares seven widely used risk assessment tools for violent extremism, including the VERA-2R, the ERG 22+, the SQAT, the IR46, the RRAP, the Radar, and the VAF.

This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.

In this article, Bart Schuurman and Sarah Louise Carthy conduct further research into the understanding of the causes of terrorism by assessing differences and similarities between left-, right- and jihadist extremists and terrorists. The article draws on the Analysen zum Terrorismus, one of the most…

Research goal: To support the design of technologies (counter-measures and communication measures) for the prevention, interdiction and mitigation of lone actor extremist events (LOEEs), which are hard to anticipate, yet can be highly damaging to local and national communities and therefore must be…

A growing amount of literature is being devoted to interrogating gendered dynamics in both violent extremism and terrorism, contributing to the integration of international and feminist security. This includes how such dynamics can shape differences in the motivations and participation of women and…

Are you thinking about studying Crisis and Security Management: Governance of radicalism, extremism and terrorism? Learn more and watch the videos.

Psychologist Ilse van de Groep found that people react more aggressively when receiving negative feedback. However, if people already exhibit persistent antisocial behavior they do not respond even more aggressively to negative feedback.This research earned her the Koningsheide Prize 2022 for the scientific…

On 17 August 1945, two days after the Japanese surrender that also brought an end to the Second World War in Asia, Indonesia declared its independence. The declaration was not recognized by the Netherlands, which resorted to force in its attempt to take control of the inevitable process of decolonization.…

This article examines how the threat of terrorism has been addressed at the policy level through an analysis of a specific case in Mali.

On 12 mei 2020, Darryl Robinson defended 'Exploring Justice in Extreme Cases: Criminal Law Theory and International Criminal Law'. The doctoral research was supervised by Prof. C. Stahn.

Global climate change is manifest by local-scale changes in precipitation and temperature patterns, including the frequency of extreme weather events (EWEs). EWEs are associated with a myriad range of adverse environmental and societal consequences, including negative impacts to agriculture and food…

A team led by Dr. Yannick Veilleux-Lepage (Institute of Security and Global Affairs) and Joris Larik (Leiden University College The Hague) have secured research funding from the Canadian Department of National Defence and Canadian Armed Forces funded RWE-CAF Research Network.

This August, the second edition of the Advanced Summer Programme

In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…

‘We want to say something very different from the norm. We are the radicals now.’ Tahir Abbas is lyric about the DRIVE project he will be leading from Leiden University in The Hague. This is a short introduction to the research that will be carried out in the Netherlands, Denmark, Norway and the United…

When does radicalization not lead to terrorist attacks?

Training a robot in a real-life environment is more or less impossible. Computer scientist and psychologist Roy de Kleijn switched to training in a simulated, virtual one instead. ‘You do have a reality gap, but the more precisely you train the robot, the better it is in practice.’ His inspiration:…

The common image of extreme right activist is people wearing bomber jackets, flags and banners while shouting defiance during protest marches. Or that of the extremist internet trolls spreading racist ideologies while sitting home alone behind their computer screens. However, the line between extreme…

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…

Every summer, Leiden University is the setting of dozens of summer schools in which professionals and students can receive extra training on a specific topic within a short space of time. We took a look at a summer programme on extremism. ‘A recruiter for al-Qaeda said that I could change the world.…

In this article, Maria-Elena Kisyova, Yannick Veilleux-Lepage and Vanessa Newby shed some light on how a small but highly visible group of influencers are actively working to promote a dangerous far-right ideology.

In this publication, the authors explore the reality of accessing and interviewing hard-to-reach populations such as extremists and terrorists

Understanding the evolving landscape of extremism in the 21st century.

In this article, Isabelle Frens, Jelle van Buuren and Edwin Bakker aim to understand anti-government protests by focusing on empty signifiers.

Doctors and pharmacists should take greater account of obesity when dosing medicines. The distribution in the body and the breakdown of a medicine can vary considerably in obese patients. This is stated by clinical pharmacologist Catherijne Knibbe in the Annual Review of Pharmacology and Toxicology.

Trust and reciprocity are two important social behaviors that help adolescents to navigate their social world successfully. In their empirical article in Journal of Research on Adolescence, van de Groep, Meuwese, Zanolie, Güroğlu, and Crone describe the development of trust and reciprocity in adolescents…

PhD-student Nikki Sterkenburg studies far-right extremist groups. But how does she get in touch with these groups? And what do you do if you stumble upon illegal activities? She explains in our podcast series (in Dutch).

A galaxy is already incredibly large, but it can get even bigger. Astronomer Reinout van Weeren investigates clusters of galaxies, one of the largest structures in the universe. For his research into the origins and evolution of these clusters, he obtained an ERC Starting Grant of 1.5 million euros.…

Intergenerational transmission refers to the complex and dynamic process with which values, ideas and behaviors are transmitted across generations. We are specifically interested in the intergenerational transmission of behaviors and beliefs that might result in harm to the individuals involved or society…