Chatham House Law

The International Law Programme at @ChathamHouse conducts policy-oriented research on critical issues of public international law.

[Chatham House Law @CHIntLaw]

📢Join us on Thursday 11 June to celebrate the launch of our upcoming paper 'Medical care in armed conflict: addressing the crisis'.

Thursday 11 June, 17:00-18:15 BST
Register below ⤵️
https://t.co/S9YERxO7qt

[Chatham House Law @CHIntLaw]

🗳️Who will be the next UN Secretary-General?

We'll be joined by two of the candidates, Rafael Mariano Grossi and Rebeca Grynspan, to present their vision of how they might lead the organization.

Friday 29 May 11:00 - 13:00 BST
Register below⤵️
https://t.co/IgYCLn9nl2

[Chatham House Law @CHIntLaw]

📝A US Department of War memo reignited debate over ownership – which is complicated by Argentine independence, British administration, and the principle of self-determination.

Read the full explainer below⤵️
https://t.co/HAWmZFsVrt

[Chatham House Law @CHIntLaw]

🚢Freedom of passage through the Strait is a key issue for all maritime nations, writes Professor Marc Weller, Director of the International Law Programme at Chatham House.

Read the full explainer below ⤵️
https://t.co/bw3TnEc5lo

[Chatham House International Security @CH_IntSecurity]

🖊️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⬇️
https://t.co/y99OMwMkdA

[Chatham House Law @CHIntLaw]

"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
https://t.co/uZUaObXcH4

[Chatham House @ChathamHouse]

"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.

[Chatham House Law @CHIntLaw]

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 ⤵️
https://t.co/cDSAxj0sMo

[Chatham House Law @CHIntLaw]

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: https://t.co/8kcvhvB03g

[Chatham House Law @CHIntLaw]

"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:⤵️
https://t.co/4e4pyMpTGI

[Int'l Criminal Court @IntlCrimCourt]

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.

[Chatham House Law @CHIntLaw]

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⤵️ https://t.co/tksIA97t7g

[Chatham House Law @CHIntLaw]

📢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
https://t.co/3EelE9gphl

[Chatham House Law @CHIntLaw]

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:
https://t.co/IAV7HE1Awk

[Chatham House Law @CHIntLaw]

📢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⤵️
https://t.co/bfiDRaYO1O

[Chatham House Law @CHIntLaw]

📢 @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 > https://t.co/wZpBmP9dun

[Chatham House Law @CHIntLaw]

📢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⬇️
https://t.co/mBXkhpvA0G

[CH Russia Eurasia @CHRussiaEurasia]

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👇
https://t.co/8ZWI5rxPiB

[Chatham House Law @CHIntLaw]

"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: https://t.co/62479F1B1g #ICJ

[Chatham House Law @CHIntLaw]

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.