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01/08/2026

Prof. Kreß receives the certificate of admission to the Leopoldina

In November of last year, Prof. Dr. Dr. h.c. Dr. h.c. Claus Kreß LL.M. (Cambridge) received his certificate of…

12/06/2025

Interview with Prof. Kreß on Deutschlandfunk radio

Prof. Kreß speaks on Deutschlandfunk radio about US sanctions against the ICC.

11/19/2025

Prof. Kreß is awarded honorary membership of the Society for Threatened Peoples

On November 8, the human rights organization honored his decades of extraordinary work to strengthen international law,…

11/12/2025

Book Talk: Nuremberg's Citizen Prosecutor | 09. December 2025

Author Gregory Gordon, who was himself a prosecutor in war crimes trials and now teaches in China, has published a new…

10/22/2025

A Decisive Moment Concerning Individual Rights and the Law of War?

In her new contribution for Articles of War, Rosa-Lena Lauterbach analyses how the relationship between individual…

10/20/2025

On Recent Events Concerning the Crime of Aggression

In the Journal of International Criminal Justice, Prof. Kreß analyses the state of the debates and reform efforts…

10/10/2025

What's next for Gaza?

On Deutschlandfunk radio, Prof. Kreß discusses the legal assessment and prospects for success of the Gaza peace plan.

10/07/2025

The crime of war: from the Nuremberg trial to Ukraine

A recording of Prof. Kreß's conversation with Prof. Gerry Simpson at the London School of Economics on prospects for…

10/05/2025

Prof. Miloš Vec, the new Hans Kelsen Visiting Professor, arrives in Cologne!

The Faculty of Law at the University of Cologne is delighted to welcome Prof. Vec to the team!

08/14/2025

Is Israel committing genocide in Gaza?

In a new article in LTO, Gleb Bogush gives his assessment of whether Israel is committing genocide in Gaza.

08/14/2025

Prosecuting the Starvation War Crime in Germany: The Yarmouk Case

In Articles of War, Rosa-Lena Lauterbach examines how Germany is attempting for the first time to prosecute the use of…

07/10/2025

A crime seeks a court

In his new article, Alexander Elfgen analyses the Council of Europe's plans to set up a special tribunal to sanction the…

06/25/2025

The German Position on a Possible Prosecution of the Crime of Aggression in Relation to the War in Ukraine: An Indecisive and Self-Contradicting Approach?

In his new article for the German Yearbook of International Law, Alexander Elfgen analyzes Germany's hesitant and…

06/16/2025

Famine: Sieges and blockades in the light of international humanitarian law

In the Völkerrechtspodcast, Rosa-Lena Lauterbach talks about sieges, hunger in wars, the armed conflict in the Gaza…

05/14/2025

Equal parents, equal rights - On the unconstitutionality of parentage law

In her new publication, Teresa Fachinger analyses the constitutional deficits of parentage law for same-sex parents.

05/13/2025

Legal policy, rule of law, constitutional and international law

Panel of the Konrad Adenauer Foundation on 25 March 2025 on the administration of world justice in Germany with the…

04/28/2025

Conference on the Review of the ICC's Rome Statute

Recordings of the presentations from the Conference on the Review of the ICC's Rome Statute in Seoul are now available.

04/28/2025

Lutte contre l’impunité et immunités de juridiction pénale des représentants officiels de l’État

A recording of the colloquium at the Cour de Cassation on 17 March is now available.

03/24/2025

World Order Under Attack: Defend International Law against Putin and Trump!

In his new essay, Prof. Claus Kreß analyses the threat to international law posed by Putin and Trump and calls for…

03/24/2025

Book Talk: End of Immunity

A recording of the Conversation between the Former President of the International Criminal Court Chile Eboe-Osuji and…

02/28/2025

Announcement of a visit by the Israeli Prime Minister in Germany and the ICC arrest warrant

In an interview, Prof. Kreß submits that the International Criminal Court's arrest warrant should be enforced if the…

01/10/2025

How capable is the International Criminal Court of taking action?

Prof. Kreß speaks on the WDR 5 program 'Neugier genügt - Redezeit' about the current position of the International…

12/19/2024

Prof. Lieblich receives the Max Planck Cambridge Prize for International Law

Prof. Lieblich, the first Hans Kelsen Visiting Professor, is being honored for his outstanding contributions to…

12/09/2024

Prof. Kreß is a new member of the German National Academy of Sciences

Prof. Kreß has been elected to the National Academy of Sciences. He will belong to the section "Cultural Sciences",…

11/27/2024

Ninth Hans Kelsen Memorial Lecture on International Peace and Security Law

Tomorrow, Thursday, 28.11.2024, the 9th Hans Kelsen Memorial Lecture with Prof. Gregory Gordon will take place.

11/26/2024

The ICC’s Turn to Cynical Solipsism: The PTC II’s Finding of Mongolia’s Non-compliance in the Case against Putin

Keiichiro Kawai untersucht, wie die ICC-Vorverfahrenskammer II in ihrer Entscheidung zu Mongolias Noncompliance im Fall…

11/22/2024

NATO Interoperability When Targeting Indispensable Objects

Rosa-Lena Lauterbach analyses the challenges and requirements for NATO allies to ensure common standards and legal…

11/11/2024

Prof. Kreß Delivers Inaugural Lecture at The Hague Academy of International Law

On October 21, Prof. Kreß delivered the Inaugural Lecture for the "Advanced Course on International Criminal Law" at The…

11/02/2024

The Road to Koblenz & The Principle of Universal Jurisdiction ("A Closer Look" - Ep. 03)

A conversation between Dr. Mónica Castillejos Aragón and Prof. Claus Kreß, moderated by Philipp Bremer…

10/24/2024

Völkerrechtsblog: "A Complex Relationship"

In their latest blog post for the Völkerrechtsblog, Paulina Rob and Fiona Abken examine the Monetary Gold Principle of…

10/10/2024

Call for Abstracts: Young Researchers Workshop 2025

The Institute is organizing a Workshop on the ICRC's Study of Customary International Humanitarian Law. Find more…

10/01/2024

IBA ICC Moot Court 2024 – Cologne International Criminal Law Team Reaches Quarterfinals!

The Cologne team, composed of five students—Elisa Müsgen, Janik Koch, Laura Fuß, Jule Rehorst, and Nina Wieland—reached…

09/20/2024

Explosions of pagers and radios are very problematic under international law

In the 'Interview of the Week' with Deutschlandfunk, Prof. Kreß talks about how the explosions of communication devices…

08/15/2024

Prof. Eliav Lieblich, the first Hans Kelsen Visiting Professor, has arrived in Cologne

The University of Cologne warmly welcomes Prof. Lieblich to the Faculty of Law.

08/01/2024

The Law on the Advancement of International Criminal Law – On Recent Efforts in the Construction of German Global Justice

In her latest article for the KriPoZ, Dr. Svenja Raube discusses the recent reform of the VStGB.

07/24/2024

"Gone Too Far in Gaza": ICJ Opinion on Israel's Occupation of Palestinian Territories

In his guest contribution for LTO, Prof. Kreß analyzes the legal opinion on the Middle East conflict issued by the ICJ…

07/18/2024

Eighth Hans Kelsen Memorial Lecture on International Peace and Security Law

On June 3rd, the Institute hosted the eighth Hans Kelsen Memorial Lecture with Prof. Dr. David Kretzmer. The recording…

07/05/2024

Under Siege: LOAC Obligations of the Besieged Party

Together with Prof. Michael Schmitt, Rosa-Lena Lauterbach analyzes the legal obligations of the besieged war party for…

06/05/2024

Apply now for the IBA ICC Moot Court 2025!

Applications will be accepted until 30.6. An information evening will be held on 13.6 in the institute.

04/23/2024

50 Years of Repatriation of Cultural Assets

Celina Greppler and Jan Homann trace the development of decolonization of cultural heritage in the Zeitschrift für die…

04/19/2024

Where do States Stand on Official Immunity Under International Law?

In her most recent article, Joana de Andrade Pacheco explores the evolution of international law regarding the debate on…

04/17/2024

Seminar on the Special Tribunal for the Crime of Aggression against Ukraine

On April 10, Prof. Kreß delivered the keynote address as part of a seminar organized by the Council of Europe on the…

04/02/2024

Ukraine war: “Serious violation of international law”

In the WDR 5 Morgenecho interview, Prof. Kreß talks about the violations of international law by Russian warfare.

03/14/2024

Germany and International Criminal Law: Reflections in Light of Current Developments

For an English summary on the current developments on Germany’s position concerning immunity in International Criminal…

03/14/2024

A Alemanha e o Direito Penal Internacional: reflexões à luz de desenvolvimentos recentes

For a Portuguese summary on the current developments on Germany’s position concerning immunity in International Criminal…

02/09/2024

Reforming International Criminal Law: An Interview with Prof. Claus Kreß

In an interview with the public German Radio ‘Deutschlandfunk’, Prof. Kreß spoke about the German federal plans to…

02/09/2024

In pursuit of War Criminals: Ukraine v. Russia

In a joint interview with Senior Public Prosecutor Klaus Hoffmann, Prof. Claus Kreß discussed the chances of arresting…

01/24/2024

The Law of Relief Action – Is Israel Required to Allow Fuel into Gaza?

In view of the desolate humanitarian situation in Gaza, Rosa-Lena Lauterbach analyzed whether Israel is required by…

12/06/2023

A “complete siege” of Gaza in Accordance with International Humanitarian Law

Rosa-Lena Lauterbach analyzes whether Israel’s siege of the Gaza Strip after Hamas’s attacks on 7 October 2023 is…

11/24/2023

Breaching International Law in the Near East

Christoph Heinemann interviewed Prof. Claus Kreß on matters of International Peace and Security Law concerning the…

10/26/2023

On the New Momentum Regarding the Prosecution of the Crime of Aggression

From October 6 to October 11, 2023, the Vienna Conference on Amendments took place under the motto "Towards one…

08/22/2023

An International Law Assessment of ECOWAS’ Threat to Use Force in Niger

The situation in Niger following the military coup of July 26, 2023, is the subject of an article by Dr. Svenja Raube on…

08/08/2023

Osborne Clarke Dissertation Prize for Dr. Svenja Raube

The team congratulates its member Dr. Svenja Raube on receiving one of the three Osborne Clarke Dissertation Prizes.

07/21/2023

The ICC and the Crime of Aggression

On July 17, on the occasion of the 25th anniversary of the adoption of the Rome Statute of the International Criminal…

06/06/2023

Russia’s Aggression against Ukraine: The Question of Reparation

On March 27, 2023, Professor Kreß delivered this year's Luther Dispute Resolution Lecture at Bucerius Law School. The…

05/16/2023

The Ukraine War and the Crime of Aggression

On May 4, 2023, Prof. Kreß delivered the second Nuremberg Academy Lecture in the historic Nuremberg Courtroom 600.

04/12/2023

Obituary for Benjamin Ferencz

The Institute for International Peace and Security Law mourns the loss of Benjamin Ferencz, the last surviving chief…

03/13/2023

Ukraine: No Punishment for Putin?

In a new edition of the Europa Magazine, ARD discussed whether Vladimir Putin can be brought before an international…

03/06/2023

Völkerrechtler Kreß: Deutschland darf Waffen in erheblichem Umfang liefern

Im Interview der Woche des Deutschlandfunks sprach Prof. Kreß am 5. März 2023 ausführlich über Waffenlieferungen an die…

02/27/2023

International Conference: War against Ukraine - Accountability and Responses

Am 24. Februar 2023 sprach Prof. Kreß zum Verbrechen der Aggression im Ukraine-Krieg auf einer internationalen Konferenz…

02/27/2023

Anklage gegen Putin?

Die ARD hat eine Dokumentation zur Spur der Kriegsverbrechen in der Ukraine mit Beiträgen von Prof. Kreß veröffentlicht.

01/16/2023

Lehrpreis der Fachschaft Jura für Fiona Abken

Das Institut für Friedenssicherungsrecht gratuliert seiner wissenschaftlichen Mitarbeiterin Frau Fiona Abken ganz…

01/11/2023

Russia's aggression against Ukraine: Conversations on law and policy implications for Japan and Germany

Am 11. Januar 2023 hat Prof. Kreß im Rahmen der Gesprächsreihe "Russia's aggression against Ukraine: Conversations on…