Marco Roscini
@marcoroscini.bsky.social
Professor of International Law, University of Westminster - Senior Fellow, NATO CCDCOE. IHL, use of force, cyber warfare, nuclear weapons, history of IL.
Political science
76%
Environmental science
5%
Rethinking Collective Self-Defence in International Law
www.westminster.ac.uk
A reminder of this event at ILaW : Rethinking Collective Self-Defence in International Law, 3 February, 6 pm www.westminster.ac.uk/events/rethi...
global.oup.com
If you want to know whether Trump’s tariff threats are a violation of the principle of non-intervention, Chapter 3 of my book might be of interest. It explores what coercion is and whether economic coercion is unlawful under customary int’l law and the OAS Charter
global.oup.com/academic/pro...
global.oup.com/academic/pro...
Marco Roscini
@marcoroscini.bsky.social
· Jan 14
Rethinking Collective Self-Defence in International Law
<p class="carina-rte-public-DraftStyleDefault-block">3 Feb 2026</p><p class="carina-rte-public-DraftStyleDefault-block">6-7pm</p><p class="carina-rte-public-DraftStyleDefault-block">B.02, 4-12 Little ...
westminster.cventevents.com
Join James Green and myself for ‘Rethinking Collective Self-Defence in International Law’ on 3 February @UW_WLS With global debate raging over threats to Greenland, this discussion couldn’t be more relevant #InternationalLaw @ILaWWestminster
westminster.cventevents.com/event/websit...
westminster.cventevents.com/event/websit...
Marco Roscini
@marcoroscini.bsky.social
· Nov 19
Quintin Hogg Trust (QHT) studentships – September 2026 entry | University of Westminster, London
www.westminster.ac.uk
You have a great idea for a PhD and you’re interested in doing it under my supervision? Studentships are now available:
www.westminster.ac.uk/study/postgr...
www.westminster.ac.uk/study/postgr...
Marco Roscini
@marcoroscini.bsky.social
· Nov 13
Assessing the Role of AI in Determining the Necessity and Proportionality of the Exercise of Self-Defense Against an Armed Attack
This article explores whether artificial intelligence (AI) constitutes an asset or rather a challenge in assessing the necessity and proportionality of a State’s response to an armed attack in the con...
digital-commons.usnwc.edu
My new article on the ambivalent role of AI in determining the necessity and proportionality of self-defence against an armed attack has just been published in a fantastic special issue of International Law Studies
digital-commons.usnwc.edu/ils/vol107/i...
digital-commons.usnwc.edu/ils/vol107/i...
From hackers to tech companies: IHL and the involvement of civilians in ICT activities in armed conflict
Five key risks, and state obligations, when civilians become involved in information and communication technology activities in armed conflict.
blogs.icrc.org
Read our blogpost on the legal consequences of the increasing involvement of civilians in cyber and other digital activities during armed conflict blogs.icrc.org/law-and-poli...
Reposted by Marco Roscini
Matt Pollard
@mpollard.bsky.social
· Nov 4
From hackers to tech companies: IHL and the involvement of civilians in ICT activities in armed conflict
Five key risks, and state obligations, when civilians become involved in information and communication technology activities in armed conflict.
blogs.icrc.org
Blog post by @icrc.org colleagues Tilman Rodenhauser (@trodenhauser.bsky.social), Samit D'Cunha, Laurent Gisel (@laurentgisel.bsky.social), as well as Anna Rosalie Greipl (@geneva-academy.ch) & @marcoroscini.bsky.social (University of Westminster).
📅 The “From Hackers to Tech Companies: IHL and the Involvement of Civilians in ICT Activities in Armed Conflict” event is happening next week!
Join this interactive expert discussion on key legal questions to limit civilian involvement & prevent IHL violations.
🔗 Register now → bit.ly/48EZ0ev
Join this interactive expert discussion on key legal questions to limit civilian involvement & prevent IHL violations.
🔗 Register now → bit.ly/48EZ0ev
EVENT: From Hackers to Tech Companies: IHL and the Involvement of Civilians in ICT Activities in Armed Conflict
bit.ly
I look forward to participating today in the launch of our report on civilian involvement in cyber and other digital activities in armed conflict, an output of the Joint Initiative on the Digitilisation of Armed Conflict of the @icrclawpolicy.bsky.social and the @geneva-academy.ch
Reposted by Marco Roscini
EVENT: From Hackers to Tech Companies: IHL and the Involvement of Civilians in ICT Activities in Armed Conflict
bit.ly
📅 The “From Hackers to Tech Companies: IHL and the Involvement of Civilians in ICT Activities in Armed Conflict” event is happening next week!
Join this interactive expert discussion on key legal questions to limit civilian involvement & prevent IHL violations.
🔗 Register now → bit.ly/48EZ0ev
Join this interactive expert discussion on key legal questions to limit civilian involvement & prevent IHL violations.
🔗 Register now → bit.ly/48EZ0ev
Marco Roscini
@marcoroscini.bsky.social
· Oct 28
Marco Roscini
@marcoroscini.bsky.social
· Oct 16
🎙️ New EJIL Podcast: Non-Intervention — Past, Present & Future 🎙️
When should states butt out of other states’ business? Nehal Bhuta & Megan Donaldson talk with Marco Roscini & Frédéric Mégret on the past, present, & future of non-intervention.
When should states butt out of other states’ business? Nehal Bhuta & Megan Donaldson talk with Marco Roscini & Frédéric Mégret on the past, present, & future of non-intervention.
EJIL: The Podcast! Episode 38: Non-intervention— past, present and future
We see today flagrant breaches of the prohibitions on the threat or use of force, but also renewed pressure and scrutiny on a related but broader prohibition, the prohibition of intervention, forcible...
www.ejiltalk.org
I very much enjoyed recording this. Thank you for the invitation to share thoughts with these amazing colleagues
Reposted by Marco Roscini
EJIL: Talk!
@ejiltalk.bsky.social
· Oct 16
EJIL: The Podcast! Episode 38: Non-intervention— past, present and future
We see today flagrant breaches of the prohibitions on the threat or use of force, but also renewed pressure and scrutiny on a related but broader prohibition, the prohibition of intervention, forcible...
www.ejiltalk.org
🎙️ New EJIL Podcast: Non-Intervention — Past, Present & Future 🎙️
When should states butt out of other states’ business? Nehal Bhuta & Megan Donaldson talk with Marco Roscini & Frédéric Mégret on the past, present, & future of non-intervention.
When should states butt out of other states’ business? Nehal Bhuta & Megan Donaldson talk with Marco Roscini & Frédéric Mégret on the past, present, & future of non-intervention.
International Law and the Principle of Non-Intervention by Marco Roscini [Oxford University Press, 2024, 460pp, ISBN: 978-0-19878-6894, £140.00, (h/bk)] | International & Comparative Law Quarterly...
International Law and the Principle of Non-Intervention by Marco Roscini [Oxford University Press, 2024, 460pp, ISBN: 978-0-19878-6894, £140.00, (h/bk)]
www.cambridge.org
‘This excellent contribution will no doubt serve as the first port of call for any academic or practitioner looking into the subject.’ Thanks Jack Kenny for his generous review of my non-intervention book for @iclq.bsky.social
And just like that … the three-week residential session of the Hague Academy of International Law Centre for Studies and Research 2025 has come to a close—but the project is not over! Stay tuned for our forthcoming book on Artificial Intelligence and International Law
Marco Roscini
@marcoroscini.bsky.social
· Aug 18
Today we kicked off the 2025 Centre for Studies and Research of the Hague Academy of International Law focusing on Artificial Intelligence and International Law. Exciting weeks ahead!
Marco Roscini
@marcoroscini.bsky.social
· Jul 10
Delighted to be in Toronto to give a presentation on the principle of non-intervention as a balancing mechanism ensuring the co-existence of empires at the conference on Legal Histories of Empire: Empires in Touch #nonintervention
Another stop in the non-intervention tour. In 1968, Wenceslas Square in Prague became a focal point of resistance against the Soviet-led invasion of Czechoslovakia. After the Prague Spring was suppressed, Brezhnev proclaimed his doctrine of limited sovereignty.
‘The Author’s conclusions are well-supported by a thorough analysis of relevant international practice and scholarly literature. These qualities make the work an essential resource for anyone seeking to grapple with these themes’ Thanks A. Annoni for reviewing my book for Riv. dir. internazionale!
Marco Roscini
@marcoroscini.bsky.social
· Jun 17
Il diritto internazionale umanitario si preoccupa di prevenire o ridurre la povertà?
The present paper explores the rules of international humanitarian law that can address the problem of poverty resulting from armed conflict, both directly and
papers.ssrn.com
Does international humanitarian law address the problem of poverty resulting from armed conflict? My thoughts just published (in Italian) in the Proceedings of the 2024 Conference of the Italian Society of International Law #ihl #poverty #sdg
papers.ssrn.com/sol3/papers....
papers.ssrn.com/sol3/papers....
Marco Roscini
@marcoroscini.bsky.social
· Apr 29
Another stop on the #nonintervention tour. The Nyon Agreement was signed on 14 Sept 1937. Nyon was chosen to avoid association with the League of Nations, which was viewed unfavorably by Italy. The agreement addressed attacks on international shipping during the Spanish Civil War
Marco Roscini
@marcoroscini.bsky.social
· Apr 28
global.oup.com
Did you know that, although never formally recognised by the Catholic Church, the monarchs of France, Spain and Austria claimed a jus exclusivae, ie, the right to veto a particular candidate to the papacy? See Chap. 1 of my book #nonintervention #conclave
global.oup.com/academic/pro...
global.oup.com/academic/pro...
Marco Roscini
@marcoroscini.bsky.social
· Apr 16
Zeitschrift für ausländisches öffentliches Recht und Völkerrecht / Heidelberg Journal of International Law - Nomos eLibrary
Die ZaöRV erscheint seit 1929 unter der Leitung des Max-Planck-Instituts für ausländisches öffentliches Recht und Völkerrecht, Heidelberg. Ihr englischer…
www.nomos-elibrary.de
I’m very grateful to Sir Michael Wood for his generous review of my book on the principle of non-intervention. www.nomos-elibrary.de/de/10.17104/...
Marco Roscini
@marcoroscini.bsky.social
· Apr 10
Symposia
www.slu.edu
Delighted to be back in St Louis for three days of international humanitarian law discussions. Thanks for inviting me again! #ihl www.slu.edu/law/internat...
shorturl.at
Is the imposition of tariffs a form of economic coercion and an unlawful intervention in the domestic affairs of other states? Check out my recent book, pp. 170-186: shorturl.at/BvMsw #trump #tariffs #nonintervention
Marco Roscini
@marcoroscini.bsky.social
· Mar 31
The Guardian view on attacks on lawyers: democracies must stand up for justice
Marco Roscini
@marcoroscini.bsky.social
· Mar 20
Thanks! And great seeing you yesterday
Marco Roscini
@marcoroscini.bsky.social
· Mar 20
I’m honored to be appointed as a Senior Fellow at @ccdcoe and excited to continue contributing to the Centre’s outstanding work on cyber defence and AI #intlaw #cybersecurity #nato
Marco Roscini
@marcoroscini.bsky.social
· Mar 17
International law and the principle of non-intervention | UWE Bristol
A RIPIL event featuring guest speaker, Professor Marco Roscini (Geneva Academy of International Humanitarian Law and University of Westminster).
www.uwe.ac.uk
See you tomorrow in Bristol or online #nonintervention www.uwe.ac.uk/events/inter...
Marco Roscini
@marcoroscini.bsky.social
· Feb 22
Exclusive: US could cut Ukraine's access to Starlink internet services over minerals, say sources
Ukraine's access to SpaceX-owned Starlink was brought up in talks between U.S. and Ukrainian officials after Ukrainian President Zelenskiy turned down an initial proposal from U.S. Treasury Secretary Bessent.
www.reuters.com
This looks a lot like economic coercion to me, prohibited by the principle of non-intervention (as codified in the UN Friendly Relations Declarations) and by Art. 3 of the 1994 Budapest Memorandum www.reuters.com/business/us-...
Reposted by Marco Roscini
Communities uprooted. Families torn apart.
Vital infrastructure destroyed.
As conflicts escalate worldwide – from Gaza to Sudan, Myanmar to Ukraine – civilians are bearing the brunt.
Emerging threats – autonomous weapons, cyber warfare – are compounding the challenges.
Vital infrastructure destroyed.
As conflicts escalate worldwide – from Gaza to Sudan, Myanmar to Ukraine – civilians are bearing the brunt.
Emerging threats – autonomous weapons, cyber warfare – are compounding the challenges.