Oona Hathaway
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oonahathaway.bsky.social
Oona Hathaway
@oonahathaway.bsky.social
Professor at Yale Law School & Professor of Political Science at Yale University; Executive Editor at Just Security; president-elect, American Society of International Law; former Special Counsel at U.S. Department of Defense
Pinned
Anti-satellite weapons are proliferating and now include the prospect of a nuclear-armed satellite capable of wiping out our entire communications infrastructure.

We tackle the many hard legal issues this new reality raises @nyulawreview.bsky.social.

papers.ssrn.com/sol3/papers....
"the combat decisions he has made"

Hegseth is setting up Admiral Bradley to take the blame for killing the survivors--which is just the tip of an immense iceberg of illegal acts.

U.S. military officials beware: Following orders is not a defense to murder or war crimes.
December 2, 2025 at 11:07 AM
There are news reports that Hegseth personally issued orders to “kill everybody” on a boat accused of drug trafficking

A group of former JAGs explains that "both the giving and the execution of these orders, if true, to constitute war crimes, murder, or both."

www.justsecurity.org/wp-content/u...
November 29, 2025 at 10:34 PM
Reposted by Oona Hathaway
A counterproductive and unlawful U.S. policy:

Several States have now curtailed counter-narcotics intelligence support and/or called out U.S. boat strikes as illegal:

Canada
Colombia
EU
France
Mexico
Netherlands?
UK

We discuss their legal obligations that forbid support for boat strikes.
Obligation of States to Stop Intelligence Support for U.S. Strikes
The only way States can avoid complicity in “arbitrary killings” under IHRL is to refrain from sharing intelligence that enables them.
www.justsecurity.org
November 17, 2025 at 3:33 PM
Had so much fun recording this podcast with Philippa Webb, Marko Milanovic & Nicolas Angelet. We discuss the legality of the US strikes on suspected drug boats and the UNRWA advisory opinion of the International Court of Justice. Take a listen!

www.ejiltalk.org/ejil-the-pod...
November 17, 2025 at 12:34 PM
Reposted by Oona Hathaway
Save the Date and don't miss the upcoming Nuremberg Academy Talk: "War Unbound" by Professor Oona Hathaway @oonahathaway.bsky.social
🗓️ 13 November 2025, 11:00 am
📍Room 619, @nurembergacademy.bsky.social
Further information: www.nurembergacademy.org/public-disco...
November 12, 2025 at 10:52 AM
Reposted by Oona Hathaway
Pleased to be quoted here alongside @joaquincastrotx.bsky.social and my friend @oonahathaway.bsky.social.
The UK has allegedly stopped sharing intelligence with the US used to fight drug trafficking. The Trump Admin is alienating our allies who want no part in their illegal campaign of government sanctioned killings in the Western Hemisphere.

More of my thoughts: www.theguardian.com/uk-news/2025...
UK pauses intelligence-sharing with US on suspected drug vessels in Caribbean
Rare rupture between military allies comes as concerns grow over Trump administration’s lethal sinking of boats
www.theguardian.com
November 11, 2025 at 11:11 PM
I am looking forward to this talk. If you are in Nuremberg, please join us!
📢 The Nuremberg Academy welcomes Prof. Oona Hathaway @oonahathaway.bsky.social for our next Academy Talk: “War Unbound” on 13 November at 11 pm. Join us as she explores the evolution of laws on war, from Nuremberg to today, & discusses the challenges facing the international legal order.
November 11, 2025 at 3:27 PM
Thanks to the PIL Discussion Group for a great conversation!
For this week’s PIL Discussion Group seminar, we were delighted to have Prof @oonahathaway.bsky.social discuss her project entitled ‘War Unbound.’ We look forward to seeing how the project unfolds. As always, we thank everyone for joining us both in person and online.
November 7, 2025 at 10:14 AM
Are you in Oxford on November 6? If so, consider joining me for my talk, "War Unbound"! Details below.
We warmly invite you to our second PIL Discussion Group event of this term, scheduled for next Thursday, 6 November 2025. Prof @oonahathaway.bsky.social will deliver a talk entitled ‘War Unbound’. For more information and to register for the event, see here: www.law.ox.ac.uk/content/even....
PIL Discussion Group: War Unbound | Faculty of
Abstract International humanitarian law, also known as the law of armed conflict, is supposed to
www.law.ox.ac.uk
October 30, 2025 at 8:59 PM
If you are in London on November 5, consider joining me for this conference on "The U.S. & International Law in a Changing World."

Register for free here: www.eventbrite.com/e/the-us-and...
October 30, 2025 at 8:57 PM
Reposted by Oona Hathaway
We warmly invite you to our second PIL Discussion Group event of this term, scheduled for next Thursday, 6 November 2025. Prof @oonahathaway.bsky.social will deliver a talk entitled ‘War Unbound’. For more information and to register for the event, see here: www.law.ox.ac.uk/content/even....
PIL Discussion Group: War Unbound | Faculty of
Abstract International humanitarian law, also known as the law of armed conflict, is supposed to
www.law.ox.ac.uk
October 27, 2025 at 1:09 PM
Reposted by Oona Hathaway
Today 11:30: JS Editors @oonahathaway.bsky.social and @adhaque.bsky.social
on "Customary International Law What Role Can it Play in Responding to Contemporary Global Crises?”
#ILW2025

Oona’s analysis:
www.justsecurity.org/author/hatha...

Adil’s analysis:
www.justsecurity.org/author/haque...
Oona A. Hathaway
Meet Oona Hathaway, Executive Editor at Just Security and Professor of International Law at Yale Law School where she directs the Center for Global legal Challenges and serves as the Counselor to the ...
www.justsecurity.org
October 24, 2025 at 1:20 PM
If you are in Berlin, please join me for my talk, "War Unbound," on Monday evening at the Freie Universität Berlin! Details here:

www.jura.fu-berlin.de/fachbereich/...
October 24, 2025 at 7:40 AM
Reposted by Oona Hathaway
Join us for the keynote lecture by Prof. Oona A. Hathaway
@oonahathaway.bsky.social marking the launch of the JuDem Project at CCRD @humboldtuni.bsky.social

🗓️ Nov 17, 2025 | 18:00
📍 Humboldt Graduate School, Festsaal
Luisenstr. 56, 10117 Berlin
Registration: bit.ly/4n0xNqa
October 21, 2025 at 4:32 PM
Susan was not only a pioneer; she was a genuinely kind person. While interning for NPR in 1992, I prepared her briefing book and staffed her at the Republican Convention in Houston. I was 19 and had a lot to learn. I feel so grateful for the chance to see her brilliance and humanity in action.
npr.org NPR @npr.org · Oct 20
NPR has lost a singular, distinctive radio journalist: Susan Stamberg, who died Thursday. She was the first woman to host a national news broadcast and set the tone, pace, and scope of the network. n.pr/3IR4JUn
Opinion: Susan Stamberg gave NPR its voice
NPR has lost a singular, distinctive radio journalist: Susan Stamberg, who died Thursday. She was the first woman to host a national news broadcast and set the tone, pace, and scope of the network.
n.pr
October 20, 2025 at 12:59 PM
Reposted by Oona Hathaway
Glad to talk with Claudia Grisales for this @npr.org story on the Venezuelan boat strike and Congress's failure to play any meaningful role.

www.npr.org/2025/09/14/n....
September 15, 2025 at 8:05 PM
If you are in Berlin, consider joining me at the American Academy in Berlin for my fellows talk, "War Unbound," on October 23 at 7:30 pm. (Those not in Berlin can watch the livestream.)

Sign up here:
www.americanacademy.de/event/war-un...
War Unbound - American Academy in Berlin
Axel Springer Lecture War Unbound International humanitarian law, also known as the law of armed conflict, is supposed to spare civilians from the worst calamit
www.americanacademy.de
October 1, 2025 at 10:44 AM
Glad to talk with Claudia Grisales for this @npr.org story on the Venezuelan boat strike and Congress's failure to play any meaningful role.

www.npr.org/2025/09/14/n....
September 15, 2025 at 8:05 PM
In recent days, the EU announced that it is considering creative new ways to use Russia's frozen central bank assets to support Ukraine. Russia is threatening retaliation.

For a deep dive into the legal issues involved, take a look at our recent article:

papers.ssrn.com/sol3/papers....
September 15, 2025 at 10:50 AM
Anti-satellite weapons are proliferating and now include the prospect of a nuclear-armed satellite capable of wiping out our entire communications infrastructure.

We tackle the many hard legal issues this new reality raises @nyulawreview.bsky.social.

papers.ssrn.com/sol3/papers....
September 15, 2025 at 6:31 AM
“The decision to blow up the boat and kill everyone onboard when interdiction and detention was a clearly available option is manifestly illegal and immoral" -- sad have to make such an obvious point, but here we are.

Read the whole piece: www.cnn.com/2025/09/10/p...
Analysis: Trump claims he can do anything he wants with the military. Here’s what the law says | CNN Politics
Having rebranded the Department of Defense as the Department of War, the president is going on offense with the US military.
www.cnn.com
September 14, 2025 at 2:52 PM
It was an honor to speak at the opening of the @hertieschool.bsky.social academic year yesterday in Berlin. I so enjoyed the chance to welcome the students and the conversation with Violeta Moreno-Lax and Pierre Thielbörger!
✅ We're back! Yesterday, we kicked off the Academic Year 25/26 with a public discussion on "The State of International Law in the 21st Century".

The Hertie School welcomed 431 students from 54 countries, including exchange and dual-degree students, along with 18 new PhD researchers.
September 11, 2025 at 7:30 PM
This was a great conversation about the value and future of international law.

Take a listen.

open.spotify.com/episode/3j4y...
Episode 33: Oona Hathaway
open.spotify.com
September 10, 2025 at 6:46 PM
President Trump's executive order purporting to rename the Department of Defense is just one more piece of evidence that he's prepared to destroy the postwar legal order.

Here's why that matters:

nam12.safelinks.protection.outlook.com?url=https%3A...
September 5, 2025 at 9:52 AM