Tens of thousands of soldiers and civilians have died as a result of Russia’s invasion of Ukraine in February 2022 and the continuing armed conflict. Many forms of critical infrastructure have been destroyed. Much of this devastation has been caused by weapons that utilise forms of artificial intelligence…

The project interrogates the relationship between impartiality and power and asks whether impartiality as a cornerstone of global governance can – and ought to – be re-envisioned in the context of changing global governance power relations.

The impact of a ceasefire shifts over the course of a conflict, as conflict party leaders learn more about each other’s military and political aspirations and adapt their use of ceasefires accordingly. That’s the key message of the dissertation of Valerie Sticher, PhD-candidate at the Faculty of Governance…

Stichting Onderwijsgeschillen (Foundation for Educational Disputes) is pleased to announce that it has established an endowed chair ‘Conflictoplossing en rechtsbescherming in het onderwijs' (conflict resolution and legal protection in education) at Leiden University.

In the last two decades, there have been heated public and scholarly debates in France, the United Kingdom, and the Netherlands on the violent end of empire. Nevertheless, the broader comparative investigations into colonial counterinsurgency tend to leave atrocities such as torture, execution, and…

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.…

Leiden social and organisational psychologist Carsten de Dreu has been awarded a Spinoza Prize, the top science prize in the Netherlands. We talked to him about his passion for group processes, Leiden University and his dreams for the future. ‘A Spinoza opens up a world of possibilities.'

S.S. Kolipaka’s thesis questions and investigates the survival prospects of reintroduced tigers and their offspring’s in the human dominated landscape of Panna tiger reserve in India.

Psychologists Emma ter Mors, Christine Boomsma and other research partners will share results from their work on the crucial issue of societal support for delivering carbon capture, utilisation and storage (CCUS) in Europe. You're welcome to watch the free webinar.

On January 1, the research group Physical Violence and Public Order was launched. Previously part of the group Terrorism and Political Violence, the new group focuses on violence ranging from mass shootings such as Columbine and Virginia Tech, to domestic violence, alcohol-related violence, violent…

In the theme of Big Cat Month, National Geographic interviewed Professor Hans de Iongh, guest researcher of the Institute of Environmental Sciences (CML) about lion conservation in Africa.

Conference

Lecture

How can the emergence of primary justice systems be facilitated and furthered?

The Israel-Palestine conflict regularly sparked intense debates in university lecturer Noa Schonmann's classes. She decided to start a podcast with journalist Rajaa Natour to teach her students to have deep and difficult conversations in a nuanced way.

Kai Hebel explains how the 1975 Helsinki Accords shaped European diplomacy and why their spirit remains urgently relevant in an era of renewed geopolitical in the Guardian.

PhD defence

Lecture, LUCIS What's New?! Series

Since mid-March, residents of Groningen have had access to a single digital portal for reporting damage to property arising from local gas extraction. Why is the Groningen gas issue such a complex problem and why is compensation taking so long? Psychologist Emma ter Mors and public administration specialist…

A delegation of the Institute of Environmental Sciences (CML) of the Faculty of Science of Leiden University, led by the Dean of the Faculty of Science: Prof.dr. Geert de Snoo, visited the Kenyan ambassador Mr. Lawrence Lenayapa and his staff on Monday 29 of October in The Hague.

The most densely populated country in Africa, Nigeria, is fighting a war on two fronts. Not only is Nigeria being confronted with violence on a national level by terror group Boko Haram, on a regional level there are conflicts between shepherds and farmers.

The war between Russia and Ukraine, the conflict in Gaza or the global rise of the far-right: topics that stir up emotions but are also regularly discussed in classes at Political Science. Moreover, with a diverse group of students, there is a great diversity of life experiences, backgrounds and opinions.…

Carsten de Dreu has received the Carol and Ed Diener Award in Social Psychology which is designed to recognise a mid-career scholar whose work has added substantially to the body of knowledge to the social psychology field and brings together personality psychology and social psychology.

A juvenile suspect has been apprehended for the murder of 15-year old Megan from Breda last Monday. A highly unusual situation, according to Marieke Liem, Associate Professor at the Institute of Security and Global Affairs in The Hague. She gave an interview to Dutch newspaper AD.

PhD defence

The article that was published on 21 January 2020 claims that chip maker ASML wants to be able to export to China but has been unable to obtain the necessary permits. Last summer, the application by the Dutch Ministry of Foreign Affairs (BZ) was suddenly frozen after pressure from the USA, according…

Mensen werken niet alleen liever samen met leden van hun eigen ingroup, ze concurreren er ook liever mee, lieten Leidse onderzoekers in een sociaalpsychologische studie in 51 landen zien. Dit ‘nasty neighbor’- effect was een grote verrassing voor de onderzoekers, totdat ze in studies over dieren doken.…

The number of lions in Kenya is decreasing alarmingly, due partly to the encroaching cities and the development of the countryside. Together with local scientists and inhabitants, Leiden biologists are studying how this decline can be halted. ‘Lions are cleverer than we thought.’

Which law governs the Strait of Hormuz? Under international law, both Iran and the US are expected to comply with the ‘Constitution for the Oceans’. In practice, the situation is more complicated, explains maritime law expert Hilde Woker.

K-pop band BTS joining the Korean military is a compulsory obligation, one with increased meaning as tension builds on the Korean Peninsula and around the world, postdoc Aleydis Nissen writes in an article in The Diplomat.

Lions in Kenya respond very differently to human land use, climate and conservation practices. That is the conclusion of thesis from Leiden biologist Monica Chege. A uniform approach is therefore insufficient. ‘Effective conservation only works when management is tailored to local conditions and developed…

The Schoof cabinet has several plans that are just not legally feasible. Yet they are often still forced through, knowing, or even hoping, that the courts will intervene. This is dangerous policy that in the long run even undermines trust in politics, the judiciary, and the law itself, argues Armin…

Conference, 2-day Workshop

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

Political scientist Femke Bakker (Leiden University) has won the 2019 Jean Blondel PhD Prize. According to the European Consortium for Political Research (ECPR), her ‘Hawks and Doves: Democratic Peace Theory Revisited’ is best thesis in politics of the past year.

There is a real chance of war closer to home, political and military leaders in Europe have warned. What does Frans Osinga, Professor of War Studies, think about the threat and what we should do?

Juan Masullo J., Assistant Professor at Leiden University’s Institute of Political Science, has been named a 2025 Harry Frank Guggenheim Distinguished Scholar. His research with Nicholas Barnes on public security policy preferences in Rio de Janeiro's favelas has been recognized for its innovative approach…

Yra van Dijk obtained a NWO 'Internationalisation in the Humanities' grant. Together with Ernst van Alphen she will collaborate with 8 European and Israelian partners in researching 'Digital Memory of the Holocaust'.

The first year students of Bachelor Security Studies finished their final block with the course Integrated Project 1. As part of the programme's teaching philosophy ‘Explore, Understand, Do’, students were required to combine the knowledge and understanding they’d gathered throughout their first year,…

The first year students of Bachelor Security Studies finished their final block with the course Integrated Project 1. As part of the programme's teaching philosophy ‘Explore, Understand, Do’, students were required to combine the knowledge and understanding they’d gathered throughout their first year,…

Farmers on the outskirts of Nairobi National Park protect their livestock using flashing lights on top of the animal enclosures. This system keeps lions away at night. Leiden research has shown that the method is both simple and effective. Publication in PLOS ONE.

Everyone benefits when cooperation runs smoothly However, people often act obstructively. Why do they do that? Professor of Social Psychology Carsten de Dreu researches this issue using a wide variety of methods, from brain scans to the role of religion. Inaugural lecture 7 October.

How can we reduce CO2 emissions from industry? Leiden psychologists Emma Mors and Christine Boomsma are examining the public perception and acceptance around the capture and storage of carbon dioxide. This is part of the ALIGN CCUS European research programme.

How do harrowing war experiences affect different generations? Students have made a video about poignant family stories. They interviewed other students and writer Dubravka Ugrešić. The premiere of the film was on 4 May during the online Hour of Remembrance. Watch this online memorial.

The socio-economic effects of climate change often do not receive enough attention. At the EuroScience Open Forum (ESOF) a group of researchers will provide more insight. How does climate change affect whether people work together or conversely end up as opponents? And what can we learn from societies…