Event information

27 March 2024, 13:00-14:00
Register start 26 February 2024
Register end 27 March 2024

Book Launch – Prohibited Force: The Meaning of ‘Use of Force’ in International Law


Cover page of the book Cover page of the book

Prohibited 'use of force' under article 2(4) of the UN Charter and customary international law has until now not been clearly defined, despite its central importance in the international legal order and for international peace and security.

In her new open access book, Prohibited Force: The Meaning of ‘Use of Force' in International Law, Erin Pobjie offers an original framework to identify prohibited uses of force, including those that use emerging technology or take place in newer military domains such as outer space. In doing so, she explains the emergence of the customary prohibition of the use of force and its relationship with article 2(4) and identifies the elements of a prohibited 'use of force’.

In this book launch, Erin Pobjie will discuss her book’s main findings with leading international law experts, including the key open legal questions regarding how to interpret and apply the prohibition of the use of force, contemporary challenges facing the prohibition of the use of force, and the relevance of jus contra bellum in this context.


  • Gloria Gaggioli, Director of the Geneva Academy


  • Erin Pobjie, Assistant Professor, Essex Law School and Senior Research Affiliate, Max Planck Institute for Comparative Public Law and International Law
  • Marco Roscini, Swiss IHL Chair, Geneva Academy
  • Andrew Clapham, Professor of International Law, Graduate Institute and Geneva Academy Faculty Member


This event will be followed by drinks.


This event may be filmed, recorded and/or photographed on behalf of the Geneva Academy. The Geneva Academy may use these recordings and photographs for internal and external communications for information, teaching and research purposes, and/or promotion and illustration through its various media channels (website, social media, newsletters, annual report, etc.).

By participating in this event, you are agreeing to the possibility of appearing in the aforementioned films, recordings and photographs, and their subsequent use by the Geneva Academy.


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