Chatham House Law

📢Our latest paper, 'Securing justice for cyber-enabled international crimes is out! Join us next Wednesday 4 February to celebrate the launch of this research paper at our panel event - register via our website chathamhouse.org/2026/01/securi…

🖊️The latest research paper from @HarrietMoynihan @JoyceHakmeh & @NayanaPrakash1 discusses the role of Russian cyber proxies against Ukraine and its allies and considers how international and domestic law can hold proxies to account🌐 Click for more⬇️ chathamhouse.org/2026/03/holdin…

"The UK has taken a step closer to involvement in the US and Israeli war against Iran" 📝Read more from Professor Marc Weller, International Law Programme Director chathamhouse.org/2026/03/uk-arg…

"There's no ready legal basis that can be invoked in order to justify the present operation" Professor Marc Weller (@CHIntLaw) on the legal basis for the US and Israel's military campaign against Iran.

US-Israeli air strikes – and the assassination of Supreme Leader Khamenei – create precedents for other countries seeking to resort to force without consideration for the rule of law. Read more from Professor Marc Weller below ⤵️ chathamhouse.org/2026/03/iran-a…

Earlier this month Marc Weller, Director of the International Law programme, gave evidence to the UK House of Lords International Relations and Defence Committee on the legality of US actions in Venezuela. 📺Watch the full committee session here: parliamentlive.tv/event/index/68…

"Objections to ratification are based on the language of a 1966 US–UK agreement. But these objections misread that treaty’s intent and context." Read more from our Programme Director, Marc Weller, here:⤵️ chathamhouse.org/2026/01/uk-rat…

Following the launch of the #ICC Office of the Prosecutor's Policy on Cyber-enabled Crimes in December, Special Adviser Marko Milanović spoke at @ChathamHouse in London this week on prosecuting cyber-enabled international crimes.

Greenland is an island with the right to independence, which may store up legal problems – as the UK’s experience with the Chagos Archipelago shows. Read more from Marc Weller here⤵️ chathamhouse.org/2026/01/if-tru…

Non-superpower countries know that adherence to international law is not idealism, but the foundation of stable relations - and that it will only become more important in a rapidly changing world. Read our latest expert comment here: chathamhouse.org/2026/01/presid…

📢Join our panel of experts examining pathways to accountability and the legal frameworks needed to secure justice for cyber-enabled international crimes. Wednesday 4 February 2026, 17:30 – 19:00 GMT @ChathamHouse and online Register here⤵️ chathamhouse.org/events/all/res…

📢 @TheWorldToday, the @ChathamHouse magazine, has launched its new issue! Stories include how Europe can save NATO, threats to LGBT rights, reinventing foreign aid and more! Read now > chathamhouse.org/publications/t…

📢Exciting new opportunity to join the Global Governance and Security Centre! We're seeking a Senior Research Fellow in international law and governance to lead and advance our work in this area. Applications close 8th June 23:59 BST⬇️ careers.chathamhouse.org/jobs/5931664-s…

New event | Addressing Russia’s use of forced displacement in Ukraine | 7 Nov, 12:30GMT | at @ChathamHouse & online Speakers: @aarif_abraham, @HelenaKennedyKC, @Sarahlikesfilms, @KateRashevska, Maria Logan Moderator: Rashmin Sagoo (@CHIntLaw) Register👇 chathamhouse.org/events/all/res…

"The ICJ’s approach so far suggests the best defence in court may be a policy of strict scrutiny to avoid exported arms being used to violate international humanitarian law". Read @alexwentker's expert comment for @CHIntLaw here: chathamhouse.org/2024/09/more-a… #ICJ

Today @CHIntLaw, @OEA_Cyber, @OEA_CICTE, @OEA_BR & @Itamaraty_EN hosted a dialogue on int law in #cyberspace, in Brazil. This event helped to raise general awareness of the national position on int law in cyberspace, incl. discussion on the Cyber CBMs agreed among OAS members.

Increasing use of nuclear energy – due partly to innovations in reactor design – will make it more important than ever to protect civil nuclear facilities from cyberthreats, including by applying existing international law. Read our latest paper here: chathamhouse.org/2024/07/cybers…

1,000 days have passed since the Taliban banned girls attending schools in Afghanistan. What is the situation for women and girls now and what can be done to help? Listen to the latest Independent Thinking podcast on women in Afghanistan: chathamhouse.org/2024/06/indepe…

If you missed our event on understanding the application and implications of countermeasures in a cyber context, the recording is now available. Watch it here: chathamhouse.org/events/all/res…

Countermeasures are established mechanisms available to states as a response to violations of international law, but when can they be taken and how do they apply in cyberspace? Read the latest @CHIntLaw research paper by @tdesouzadias: bit.ly/4dLeUo1