Nicole Grajewski

Nicole Grajewski

@nicolegrajewski.bsky.social

Assistant Professor at Sciences Po CERI | Nonresident at Carnegie and Associate with Harvard’s Managing the Atom | working on nuclear issues involving Russia and Iran | author of Russia and Iran: Partners in Defiance from Syria to Ukraine (OUP/Hurst)

11,690 Followers 482 Following 738 Posts Joined Aug 2023
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New post on Iran’s targets during its initial retaliation on Feb. 28. It examines the targeting logic behind three parallel campaigns: striking U.S. C2/ISR infrastructure, imposing costs on the GCC states, and pressuring Israeli civilian centers. www.axesandatoms.com/p/irans-febr...

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Why Are China and Russia Not Rushing to Help Iran? Most of Moscow’s military resources are tied up in Ukraine, while Beijing’s foreign policy prioritizes economic ties and avoids direct conflict.

"Most of Moscow’s military resources are tied up in Ukraine, while Beijing’s foreign policy prioritizes economic ties and avoids direct conflict." Alexander Gabuev and Temur Umarov explain why neither Russia nor China has offered any tangible support to Iran.

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Exclusive: Russia is giving Iran specific advice on drone tactics, Western intelligence source says Three vessels were hit by projectiles near the Strait of Hormuz, the UK’s maritime agency said. Countries have agreed to release a record 400 million barrels of oil in an effort to stem gas prices. Fo...

CNN report here edition.cnn.com/world/live-n...

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Given Russian-Iranian technical cooperation since 2022, reporting that Moscow is sharing UAV employment lessons from Ukraine suggests that at least some wartime operational learning and possibly incremental technical improvements may now be informing Iranian planning.

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Recent Iranian UAV strike packages appear more complex than earlier campaigns, with greater variation in altitude/routing and clearer evidence of layered raid structures. Some approaches to defended areas appear designed to complicate radar coverage and interceptor sequencing.

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Whether these operational lessons and upgrades have been systematically transferred back to Tehran is difficult to demonstrate conclusively. But observable changes in Iranian drone employment suggest some degree of adaptation.

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The result was incremental but meaningful upgrades: anti-jam antenna arrays (e.g., Kometa), modified navigation receivers, domestically produced variants, and evolving strike packages combining drones and missiles to complicate air defense engagement.

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Over time these systems effectively became platforms for continuous operational testing. Russia expanded domestic production, modified subsystems, and employed them in thousands of strikes against a dense and adaptive Ukrainian air defense network.

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When Iranian Shaheds first appeared in Russia in 2022 they were relatively simple systems—GPS-dependent, predictable in routing, and vulnerable to jamming and interceptor combinations that Ukrainian forces developed quickly.

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The most consequential Russian contribution to Iran’s UAV capabilities over the past two years is likely in the real of operational learning generated through Russia’s large-scale Shahed employment in Ukraine.

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The CNN report also notes Russia’s experience launching Shaheds in coordinated waves that alter routes and flight profiles to evade air defenses. If such practices are informing Iranian strikes, the significance lies less in the drone itself than in operational learning.

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CNN reports Russia is now providing Iran with more specific operational guidance on UAV employment, including targeting approaches derived from its use of Shahed drones in Ukraine.

This is not very surprising but good to have it confirmed.

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4 days ago
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Trump may send US troops to neutralize Iran's highly enriched uranium. There are no good options Deploying US troops to seize or destroy Iran's highly enriched uranium would bring significant chemical, logistical, and tactical hurdles.

🚨 JUST IN: I wrote about Trump's self-induced dilemma of sending US troops to seize or destroy Iran's highly enriched uranium.

#Iran #Isfahan #uranium #Trump #nuclearweapons #nukesky @thebulletin.org

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10 Days of War and 30-something Waves of Operation True Promise 4 What I am tracking and where I remain puzzled

Good piece by @nicolegrajewski.bsky.social

www.axesandatoms.com/p/10-days-of...

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The Greatest Dangers May Lie Ahead In an interview, Nicole Grajewski discusses the military dimension of the U.S. and Israeli attacks on Iran.

What are the military risks of U.S. and Israeli strikes on Iran?

@nicolegrajewski.bsky.social discusses the strategic implications in an interview with the Malcolm H. Kerr @carnegiemec.bsky.social.

carnegieendowment.org/middle-east/...

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Wrote this article yesterday before the news of Russia’s support to Iran was reported www.russiamatters.org/analysis/ira...

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For those interested in the evolution of Russia-Iran relations, my book comes out next month.

DM if you’re interested in an advanced copy and I can put you in touch with my publisher. www.hurstpublishers.com/book/russia-...

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💭 #Iran at War: The Russian Angle

@nicolegrajewski.bsky.social explains why the Russia–Iran relationship is not an alliance.

It is a partnership shaped by shared interests, regime security concerns, and significant limits rooted in historical mistrust.

Full conversation linked below ⬇️

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I don't know anything about India-Middle East relations beyond the most cursory stuff.

The authority on this topic is
@nicoblar.bsky.social . For Iranian foreign policy in general, I follow
@nicolegrajewski.bsky.social .

If you know an expert who is here, please post in the responses.

Thanks,

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Les voisins de l’Iran, confrontés aux attaques de drones, découvrent leur vulnérabilité Dénués d’expérience en matière de lutte contre les engins kamikazes, notamment les Shahed, les pays du Golfe sont apparus désemparés face à la menace posée par la République islamique, déterminée de s...

Le stock de Shahed de l’Iran peut être estimé à “entre 4000 et 6000”(…) Au début de la guerre en 🇺🇦, Téhéran avait pu en livrer plusieurs milliers à son allié russe [mais ils] sont désormais en quasi-totalité fabriqués en 🇷🇺, sous le nom de Geran-2. @nicolastenzer.bsky.social @ilasserre.bsky.social

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💭 Iran at War: The Russian Angle

@nicolegrajewski.bsky.social explains how tensions involving #Iran could affect #Russia’s broader interests in the Gulf, where Moscow’s economic ties to GCC states often exceed its ties to Tehran.

Full conversation in the comments ⬇️

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Nuclear breakdown: How the end of the New START treaty will affect the arms race between Russia and the U.S. In early February, the Treaty on Measures for the Further Reduction and Limitation of Strategic Offensive Arms between the United States and Russia (better known as New START) expired, and no new agreement has been reached to take its place. However, a Cold War-style arms race appears unlikely, as Russia does not have the necessary resources for the mass production of new strategic weapons, argues nuclear policy expert Nicole Grajewski, an assistant professor at the Center for International Studies (CERI) at Sciences Po in Paris. In her view, a more likely future scenario involves Russia increasing the number of warheads on systems already in its arsenal while expanding production of nonstrategic weapons. The end of mutual inspections provided for under New START creates new opportunities to pursue such projects, even if Russia's coffers have been depleted by the war in Ukraine. China, however, does have the resources, and its nuclear program offers new causes for concern.

@nicolegrajewski.bsky.social argues that New START’s expiration won’t trigger a Cold War–style arms race, but rather a quieter shift toward warhead “uploading,” nonstrategic expansion, and greater nuclear ambiguity in a trilateral U.S.–Russia–China landscape.
theins.ru/en/opinion/n...

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Nuclear breakdown: How the end of the New START treaty will affect the arms race between Russia and the U.S. In early February, the Treaty on Measures for the Further Reduction and Limitation of Strategic Offensive Arms between the United States and Russia (better known as New START) expired, and no new agre...

Nuclear breakdown: How the end of the New START treaty will affect the arms race between Russia and the U.S.

Nuclear policy expert @nicolegrajewski.bsky.social examines where, how, and at what cost Russia will exploit the treaty’s absence.

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Is Moscow planning to help their longtime ally Iran in this crisis? | DW News YouTube video by DW News

In an interview for DW News, @nicolegrajewski.bsky.social argues that Russia’s support for Iran is largely rhetorical, with no mutual defense obligation and limited military reliance on Tehran:
www.youtube.com/watch?v=dyTp...

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US should not become a pawn in the Israel-Iran war - The Boston Globe Trump should pivot to coercive mediation: making any additional military or intelligence support conditional on Israeli restraint.

Last year, @nicolegrajewski.bsky.social and I specifically warned of the risk that the US could become a pawn in the Israel-Iran dynamic. Midnight Hammer came shortly after, and now this. www.bostonglobe.com/2025/06/18/o...

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Iran, US, Israel: Analyzing their goals & limitations | DW News YouTube video by DW News

My long-form interview with Richard Walker of Deutsche Welle on the war with Iran youtu.be/zxmP4TAwkOE?...

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How Putin is backing Iran's war effort A prolonged conflict in the Middle East would serve Russia’s interests

The Kremlin's calculus on Iran, featuring expertise from @hannanotte.bsky.social and @nicolegrajewski.bsky.social in @newstatesman1913.bsky.social: www.newstatesman.com/internationa...

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About to start listening to this really relevant and timely discussion with Michael Kimmage, @hannanotte.bsky.social and @nicolegrajewski.bsky.social on the Russian angle in the war against Iran.

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Ядерный срыв: как конец договора СНВ-3 повлияет на гонку вооружений между Россией и США В начале февраля истек срок действия Договора о мерах по дальнейшему сокращению и ограничению стратегических наступательных вооружений между США и Россией (СНВ-3), причем нового соглашения заключено н...

Написала для «The Insider» о том, что означает конец СНВ-3. Это не автоматическая новая гонка вооружений — у России ограничены ресурсы. Но снижение прозрачности и возможное наращивание нестратегических систем повышают риски стратегической нестабильности. theins.ru/opinions/nik...

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Nuclear breakdown: How the end of the New START treaty will affect the arms race between Russia and the U.S. In early February, the Treaty on Measures for the Further Reduction and Limitation of Strategic Offensive Arms between the United States and Russia (better known as New START) expired, and no new agre...

If you’d like to take a break from Iran, here is an article I wrote for the Insider on Russia and the expiration of New START — it’s based off of my longer term project about Russia and trilateral arms racing. theins.press/en/opinion/n...

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