If #Trump starts testing #nuclear weapons, who will be the biggest winner? Listen to another episode of my 🎙 #podcast, #TheGlobalAgora. I talked to @herzogsm.bsky.social. ▶️ podcasters.spotify.com/pod/show/and...

A new & broad public opinion survey shows US reputation strengthened by actions related to Russia's war against Ukraine, as caution without abandonment & firmness without escalation reassured allies, argue @laurensukin.bsky.social, @herzogsm.bsky.social & Alexander Lanoszka @foreignpolicy.com 5/10

US, Russia’s tests & subs, Euro deterrent, conventional forces, US space force & House of Dynamite in this week’s STAND newsletter, a project by @swp-intsecurity.bsky.social on recent news & analyses to better #underSTAND #nuclear #space #deterrence & #threats 1/10

Very pleased to have published a short piece with Lauren and Stephen in Foreign Policy that describes our latest research.

1/5 In @foreignpolicy.com, @laurensukin.bsky.social, @lanoszka.bsky.social, and I provide analysis on how publics around the world viewed the Biden administration's extensive but restricted military aid to Ukraine in 2022-2023. foreignpolicy.com/2025/10/20/u...

As the United States faces simultaneous challenges from Russia, China, Iran, North Korea, and others, it cannot afford to equate credibility with maximalist shows of force.

1/5 In @foreignpolicy.com, @laurensukin.bsky.social, @lanoszka.bsky.social, and I provide analysis on how publics around the world viewed the Biden administration's extensive but restricted military aid to Ukraine in 2022-2023. foreignpolicy.com/2025/10/20/u...

I was a guest on the IISS podcast "The Arms Control Primer" w/ @bollfrass.bsky.social & former @iaeaorg.bsky.social DG Hans Blix. We covered some lessons of the Iraq case for nuclear nonproliferation & verification. Check out the new episode: www.iiss.org/podcasts/arm...

I was a guest on the IISS podcast "The Arms Control Primer" w/ @bollfrass.bsky.social & former @iaeaorg.bsky.social DG Hans Blix. We covered some lessons of the Iraq case for nuclear nonproliferation & verification. Check out the new episode: www.iiss.org/podcasts/arm...

AI could fuel a tech arms race between proliferation-enabling & detection-enhancing tools - favoring the former & straining conventional monitoring & verification methods, which poses risks to nonproliferation, analyze @herzogsm.bsky.social & David Allison @socriskanalysis.bsky.social 8/10

SATCOM & Bundeswehr, Russia’s upgraded missiles, Iran's nuclear program, DPRK & South Korea, AI & tech race & more in this week’s STAND newsletter, a project by @swp-intsecurity.bsky.social, on recent news & analyses to better #underSTAND #nuclear #space #deterrence & #threats 1/10

1/7 How might AI enable the (non)proliferation of nuclear weapons? In a new #OpenAccess article in Risk Analysis (@socriskanalysis.bsky.social), Dave Allison & I explore this question. onlinelibrary.wiley.com/doi/10.1111/...

MTA alum David Allison & visiting scholar @herzogsm.bsky.social have published one of the first systematic studies looking at the connection between AI & nuclear (non)proliferation. See the thread below!

1/7 How might AI enable the (non)proliferation of nuclear weapons? In a new #OpenAccess article in Risk Analysis (@socriskanalysis.bsky.social), Dave Allison & I explore this question. onlinelibrary.wiley.com/doi/10.1111/...

Atomic Backfires: When Nuclear Policies Fail is now available for pre-order from @mitpress.bsky.social! The thread below describes the premise of the volume and its contributors. mitpressbookstore.mit.edu/book/9780262...

Explore @herzogsm.bsky.social's most recent contributions to the field here: www.belfercenter.org/person/steph...

1/4 Congratulations to Nonproliferation Review McElvany Award winners for their articles! @lydiawachs.bsky.social (grand prize), @karldewey1.bsky.social (runner-up), & Austin Cooper (honorable mention). Links to #openaccess articles in subsequent posts below. nonproliferation.org/article-on-r...

Was delighted to be at KAIST yesterday for the U.S.-Korea International Workshop on Research Security and Integrity. We had very productive conversations about safeguarding research ecosystems against R&D misappropriation with incredibly welcoming and knowledgeable hosts!

Thoughtful analysis of the perspectives from Europe, Russia, and Iran, and of a narrow potential path to accord from @nicolegrajewski.bsky.social. In addition, she's been posting a number of useful items on action in Iran's parliament, the text of Russia's draft UNSC resolution, etc.

It's even more fun when LLMs are generous enough to invent fictitious co-authors of the article you never wrote.

1/13 In a new report for @vertic.bsky.social, I take a hard look at the challenge that highly latent nuclear states present to irreversibility in nuclear disarmament. Summary and relevant tables and figures below. Read the report here: www.vertic.org/wp-content/u...

1/13 In a new report for @vertic.bsky.social, I take a hard look at the challenge that highly latent nuclear states present to irreversibility in nuclear disarmament. Summary and relevant tables and figures below. Read the report here: www.vertic.org/wp-content/u...

✒️ New #OpenAccess article in the JCR by our @laurensukin.bsky.social, co-authored by @herzogsm.bsky.social and @lanoszka.bsky.social! They examined the efficacy of US attempts to reassure allies and the public during the war in Ukraine, questioning whether restraint or resolve was more effective.

New VERTIC Report on the concept of irreversibility in nuclear disarmament. Researched and written by @herzogsm.bsky.social www.vertic.org/2025/08/rese...

Winning hearts and minds? How the United States reassured during the Russo-Ukrainian war doi.org/10.1177/0022... Paper in Journal of Conflict Resolution by @laurensukin.bsky.social (who will be joining @nuffieldcollege.bsky.social as a Fellow next month) @herzogsm.bsky.social & @lanoszka.bsky.social

Former Stanton Fellow @laurensukin.bsky.social coauthors a new article which argues that the US succeeded in garnering support from its global allies and partners in the early days of the Russo-Ukrainian war. (1/2) journals.sagepub.com/doi/10.1177/...

In a new article for the Journal of Conflict Resolution, CISAC affiliate @laurensukin.bsky.social & colleagues examine data from 24 countries finding early support for the US in the Russo-Ukrainian war came largely from approval of its restrained aid to Ukraine journals.sagepub.com/doi/10.1177/...

Now out open access in the Journal of Conflict Resolution. @laurensukin.bsky.social, @lanoszka.bsky.social, & I investigate US reassurance efforts in 2023 during Russia's war on Ukraine. We conducted public opinion surveys in 24 countries on 6 continents. journals.sagepub.com/doi/10.1177/...

Thread. I'm delighted to share a new piece that @laurensukin.bsky.social, @herzogsm.bsky.social, and I have in the Journal of Conflict Resolution. Available via OA, we address the following question: when and why do restraint or resolve reassure, and for whom? journals.sagepub.com/doi/10.1177/...

A somber week, remembering the horrifying devastation wreaked by atomic bombs at Hiroshima and Nagasaki 80 years ago -- the many tens of thousands killed, the far larger numbers terribly injured. We need to dedicate ourselves to ensuring that nuclear weapons are never again used in combat.

On Geopulse Podcast @tamimasey.bsky.social and I discussed health of the global nuclear order 80 years after the atomic bombings of Hiroshima and Nagasaki: public engagement with the bomb, arms control and nonproliferation, AI-nuclear weapons integration, and more. open.spotify.com/episode/0fkV...

The treaty meant to control nuclear risks is under strain 80 years after the US bombings of Hiroshima and Nagasaki @us.theconversation.com @herzogsm.bsky.social theconversation.com/the-treaty-m...

1/ 80 years ago the US dropped atomic bombs on Hiroshima & Nagasaki, Japan, thrusting humanity into a terrifying new age. In mere moments, 10s of 1000s of people perished in deaths whose descriptions often defy comprehension. No pay wall.

Boost this post, read the piece, and follow Stephen who is one of the most knowledgeable and innovative scholars in the nuclear field. He also writes beautifully and cogently.

August 6 and 9 mark the 80th anniversaries of the atomic bombings of Hiroshima and Nagasaki in 1945. I wrote for @us.theconversation.com about their influence in crafting the nuclear nonproliferation regime and on the perils of retreating from their memories. theconversation.com/the-treaty-m...

80 years after the bombings of #Hiroshima and #Nagasaki, the Nuclear Non-Proliferation Treaty faces new challenges. With 191 member nations, it has limited nuclear proliferation to 9 countries, but tensions and modernization efforts are testing its effectiveness.

Join us on Aug 6 at #MIIS for an important event of remembrance, reflection & youth-driven hope for a nuclear weapons-free future. Let’s learn from the past & empower the next generation to lead the way. @herzogsm.bsky.social @youthdisarmament.bsky.social #education #Hiroshima #nagasaki #Trinity

Was truly honored to share a room with such a knowledgeable, inspiring group at the Nobel Laureate Assembly for the Prevention of Nuclear War. The final declaration is a powerful, forward-looking call to action to reduce nuclear dangers: thebulletin.org/2025/07/the-...

Why did Margaret Thatcher oppose German reunification 35 years ago? Yes, she disliked the Germans - but her deeper fear was socialism creeping into Britain through the Brussels backdoor, driven by an increasingly dominant Germany. Probably my best research. Let me know if you’d like a copy.

1/8 Later this year from @mitpress.bsky.social in @belfercenter.bsky.social's Studies in International Security book series-- Atomic Backfires: When Nuclear Policies Fail. This is a sobering edited volume on how efforts to reduce nuclear weapons dangers may sometimes wind up exacerbating them.

This sounds interesting. Looking forward to reading.

Really looking forward to this. Congrats to @herzogsm.bsky.social @gdavidarceneaux.bsky.social, and Ariel Petrovics. Feat. chapters from many great scholars -- and me.

Should be a really interesting volume!

Very excited to check this out

1/8 Later this year from @mitpress.bsky.social in @belfercenter.bsky.social's Studies in International Security book series-- Atomic Backfires: When Nuclear Policies Fail. This is a sobering edited volume on how efforts to reduce nuclear weapons dangers may sometimes wind up exacerbating them.

It was wonderful to have some very, very late night sunlight up north in Swedish Lapland, in-between the Annual Conference at the Alva Myrdal Center for Nuclear Disarmament @uupeace.bsky.social and a nuclear-AI dialogue at @sipri.org.

We can see damage to many buildings at the Uranium Conversion Facility and some smoke from fires, but no obvious damage to the FPEP in the imagery so far. Thanks to our friends @planetlabs.bsky.social for the images

Join us at @apsa.bsky.social in Vancouver! @mvranka.bsky.social @laurensukin.bsky.social @herzogsm.bsky.social @ondrejrosendorf.bsky.social