Side events on the crime of aggression at the Assembly of States Parties: The crime of aggression was a key focus of side-event panels at the 24th session of the Assembly of States Parties to the ICC held in The Hague from 1 to 5 December 2025.
On 1 December 2025, Liechtenstein organized a side event on the legality of the use of force to advance accountability for the crime of aggression and to encourage wider ratification of the Kampala amendments. Three GIPA members joined: Dr. David Donat Cattin, Liechtenstein Ambassador Christian Wenaweser and Prof. Dr. Claus Kreß.
On the same day, GIPA member Prof. Dr. Claus Kreß joined the panel on “Accountability for the Crime of Aggression against Ukraine”.The panelists explained the key legal features of the Special Tribunal for the Crime of Aggression against Ukraine (STCA).
On 3 December 2025, GIPA co-organized an event on “The Crime of Aggression After the Special Session: No Justice without Jurisdiction” to reflect on the outcome of the Special Session of July 2025 and the necessary steps for adopting the harmonization amendments in 2029. The panel was moderated by Andreas Schüller (ECCHR) and joined by two GIPA members, Professor Jennifer Trahan and Liechtenstein Ambassador Christian Wenaweser.
On 4 December 2025, the International Nuremberg Principles Academy organized a panel discussion on “80 years after Nuremberg – Quo Vadis, ICC? The Future of the International Criminal Justice in a Divided World”. Liechtenstein Ambassador Christian Wenaweser was among the panelists who explored strategies to ensure that the principles of Nuremberg continue to guide international justice amid global division.