Lecture

Images are an increasingly important part of communication, but how do you choose suitable ones for the website and where can you find them? This page offers tips on finding the right image and what to watch out for.

Conference

Last Saturday, Reijer Passchier was a guest on one of his favourite radio programmes: Dr. Kelder en Co.

Better pay and new agreements with streaming platforms: the actors’ strike that brought Hollywood to a standstill a few days ago is mainly about money. But there is something else that film actors are worried about: the increasing use of Artificial Intelligence. Is this fear justified?

Panel discussion

Lecture

Dr Mamadou Hébié, Associate Professor of International Law at the Grotius Centre for International Legal Studies, served last week as legal counsel in the world’s first advisory proceedings concerning climate change before the International Tribunal for the Law of the Sea (ITLOS), on the one hand, and…

Debate

The chance that it will do so is about zero, but Russia is legally obliged to investigate violations of law during the war in Ukraine. States that enter into an armed conflict often deny liability, but under international humanitarian law and human rights they are obliged to investigate their military…

Researcher Yung Lin received the Young Scholar Award at the annual conference of the European Association for Taiwan Studies (EATS). She obtained her PhD in 2025 on Taiwan’s public diplomacy.

Economic law, environmental law and human rights are important fields of law for sustainable development. But they do not interact sufficiently, which makes it difficult to implement sustainable development.

The winner of this year’s Jaap Doek Children’s Rights Thesis Award wants to raise more awareness for children who have a parent in detention: ‘It’s time we stop looking the other way and actually think about the impact.’

Starting April 2026, Niels van Willigen will join the Institute of Political Science at Leiden University’s Faculty of Social and Behavioural Sciences as Professor by Special Appointment in Strategic Studies. This appointment was made possible by the Atlantische Commissie, which established this chair…

Het college van bestuur heeft Wim Voermans benoemd tot Universiteitshoogleraar. Hij gaat zich richten op duurzaam institutioneel vertrouwen.

Wars, climate change and the effects of covid have caused a global decline in children’s well-being. In her inaugural lecture Ann Skelton, Professor of Children’s Rights in a Sustainable World, points to the disastrous effects of multiple interacting crises.

Congratulations to Sara de Wit and Miriam Waltz, who have just won a Leiden University Global Seed Fund. Their proposed project entails 'Climate Talks' to foster equitable exchange between indigenous knowledge systems and climate science.

Even though the COVID-crisis continuously evolves and is marked by new realities and uncertainties, we can carefully begin to take stock looking back on the first phases of Dutch crisis management. What can we learn reflecting on the crisis strategies of this extraordinary and transboundary crisis that…

What does European border security look like? On 14 April, Hans Leijtens, executive director of Frontex and former commander of the Royal Netherlands Marechaussee, is in The Hague for a lunch lecture. We spoke with him about border security, migration and the role of Frontex.

On 15 October 2021, the EFTA Court held its annual conference in Luxembourg, this year under the title 'People in the EEA'. The EFTA Court is in charge of cases arising under the law of the European Economic Areas (EEA) in the EEA/EFTA states Iceland, Liechtenstein and Norway. Christa Tobler was invited…

The response of international organizations to the problems of cross-border death and gift taxation needs to be revisited, according to PhD candidate Vassilis Dafnomilis. PhD defence on 3 June 2021.

The Economist published an article about a working paper about the effects of democratic elections on satisfaction with democracy. The paper was written by Dimiter Koshkov, Associate Professor at the Institute of Public Administration and Honorata Mazepus, Assistant Professor at the Institute of Security…

In September 2013 I moved to Leiden from the UK to take up the position of Assistant Professor covering politics and international relations on the BA Russian Studies and International Studies programmes and the MA Russian and Eurasian Studies.

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

Europe's open borders are under pressure: Europe has an increasing number of Member States with governments calling for tighter border controls. Several political parties in the Netherlands are also calling for stricter border controls, among other things, to reduce the number of asylum seekers. Yet,…

Bacteria whirl around in the mouths of most people, forming dental plaques and sometimes causing nasty gum infections. Treponema denticola might be a dangerous pathogen, but not much is known about this bacterium. It was up to Ariane Briegel and her research group to change that.

Edmund Flett, alumnus of the International Relations master's programme, has won the 2023 J.C. Baak Prize for his thesis ‘Settlements now, settlement later. Land swaps, settler relocation, and the viability of the two-state solution in Israel-Palestine’.

On June 16, 2025, the Institute of Political Science at Leiden University hosted a panel debate about the ongoing mass student-led protests in Serbia. The protests have shaken the increasingly illiberal regime in Serbia to its core and have grown into the largest student protests in Europe since 196…

PhD defence

The housing crisis is affecting a substantial group of Dutch citizens and is one of the main election themes this year. How did things get this far and what should the new cabinet do in the coming four years to address the problems? Three Leiden researchers give their answer.

Award ceremony

The Grotius Centre for International Legal Studies is delighted to announce that Dr Farouk El-Hosseny will join the teaching staff as Visiting Assistant Professor of International Law.

Two researchers from the Institute of Political Science were recently awarded prizes. Claire Vergerio received the Francesco Guicciardini Prize for her book on the historical origins of the primacy of the state in international law ('best book in the historical international relations category'). In…

Not everyone benefits from the increased flexibility in the labour market. EU migrant workers engaged at the lower end of the employment spectrum are falling behind. According to Daniel Carter, the legal system is at fault and in his PhD thesis he explains the reasons why.

Three new ministries have been formed in the Netherlands: Asylum and Migration, Housing and Spatial Planning & Climate and Green Growth. Of course, this is not merely an administrative act. These ministries carry a strong and political charge and play a crucial role in shaping a government's political…

Predicting the collective behaviour of systems, like a large group of people electing one of the parties, is no easy task. But there’s a theory that scientists have been using for decades to do just that: the theory of Gibbs measures. Last week, mathematician Mirmukhsin Makhmudov earned his PhD for…

In a landmark ruling, the International Court of Justice says that states are obliged to protect the climate. Jolein Holtz, a climate and human rights expert, believes the Court is too vague about the impact for future generations: ‘A missed opportunity’.

We carry out regular evaluations with a view to improving the quality of our teaching. The programme committees and the Accreditation Organisation of the Netherlands and Flanders (NVAO) play an important part in this process. In addition, a student satisfaction survey is also carried out very year:…

That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

If you want to travel for work to an area with a security risk country or area with the color code orange and/or red, you need prior permission from the university.

Lewis Wade has been a Postdoctoral Researcher at the Institute for History since 1 September 2023. Below he introduces himself.

The West has missed several opportunities to prevent the invasion of Ukraine or, at the very least, to better support the Ukraine, claims Frans Osinga, Professor by special appointment War Studies.

Het asielbeleid blijft een hoofdpijndossier voor het kabinet. Een akkoord zou bereikt zijn waarin iedere partij een kleine concessie zou doen. De VVD gaat uiteindelijk toch niet akkoord met deze nieuwe asielwet die gemeentes kan dwingen om asielzoekers op te vangen. De VVD fractie heeft moeite met ‘dwang’…

Who holds rights to Greenland’s surrounding waters and natural resources? Which interests are at stake and for whose benefit? We put these questions to Hilde Woker, who specialises in the law of the sea in the Arctic.

Maartje van der Woude, together with Dr Irene Vega, has won the 2024 Theoretical Criminology Best Article Prize for the article ‘Colourblindness across borders: The de-racialised logics of Dutch and American border agents’ in the journal Theoretical Criminology.

Voormalig demissionair staatssecretaris van Fiscaliteit en Belastingdienst Marnix van Rij gaf op 17 juni in samenwerking met universitair docent Esther Huiskers-Stoop een gastcollege over belastingrecht en duurzaamheid. Deze lezing werd op initiatief van student Darya de Wilt georganiseerd.

Terrorism, crisis, violence, intelligence, diplomacy, war and peace are topics that are broadly covered in ISGA's research activities. Regularly, ISGA researchers appear in international media to discuss their research expertise. This item offers an overview of non-Dutch and non-English articles and…

To celebrate the formal launch of the Leiden Chinese Queer Collection (LCQC, 莱顿华语酷儿文献收藏), promote Chinese queer studies scholarship, and raise the visibility of Chinese queer history and culture, the LCQC steering committee will hold a workshop on 24-25 July 2025, under the aegis of the Leiden University…