Marie Robin @marierbn.bsky.social Assistant Professor War Studies - Leiden University. Previously @CWSWarStudies. All things revenge, propaganda, political violence, ethics.
Kaitlin Peach @katiepeach.bsky.social Raymond Frankel Nuclear Security Policy Fellow at the American Academy of Arts and Sciences | Non-resident Postdoctoral Research Fellow at Managing the Atom, Harvard University
kaitlinpeach.com/
Laura Luca @laura-luca.bsky.social PhD Candidate in International Security, UCLA | Game Theory | Arms Control & Non-Proliferation| Nuclear matters | Emerging Tech
Sam Gerstle @samgerstle.bsky.social Political Science PhD candidate @BU_PoliSci | Predoctoral Fellow @BelferCenter | Political economy of military power, defense industry & East Asian/Japanese security
Kerby Davis @kerbydavis.bsky.social Political science PhD student at the University of Notre Dame, specializing in international relations.
Research interests in military affairs, navies, and IR theory.
Tom Dannenbaum @tomdannenbaum.bsky.social Professor @law.stanford.edu | @stanfordcisac.bsky.social | @fsi.stanford.edu
International Law: IHL, ICL, IHRL, use of force, ethics
Editor, Just Security: https://shorturl.at/NuHYQ
Bio: https://law.stanford.edu/tom-dannenbaum/
Book: http://bit.ly/3HRrAs4
Prof.dr. Beatrice de Graaf @beatricedegraaf.bsky.social Historian | Distinguished Professor Utrecht University | „Fighting terror after Napoleon (CUP)” | security, terrorism, radicalization, crisis | Adapt-Academy.nl | Tendit in ardua virtus.
Ludovica Castelli, PhD @ludovicacast.bsky.social Project Manager, @EUNPDC at @IAI | Associate @BelferCenter Project on Managing the Atom | Prev @ThirdNuclearAge | About metaphors, nuclear history, Middle East, and Fujifilm
Kate Birkbeck @katebirkbeck.bsky.social Writing about militia, federal finance, the international arms trade. | Postdoc @Brown | Ernest May Fellow @Harvard
Trita Parsi @tparsi.bsky.social 2010 Grawemeyer Award for Ideas Improving World Order Recipient. Executive VP @quincyinst. Author of Losing an Enemy, Single Roll of the Dice & Treacherous Alliance. Views are my own.
Caitlin Talmadge @proftalmadge.bsky.social MIT professor, Brookings senior fellow, series editor at Cornell Press ⎮ Foreign policy, military operations, civil-military relations, nuclear weapons, authoritarianism ⎮ Views are my own ⎮ Book: The Dictator's Army
https://www.caitlintalmadge.com/
Federation of American Scientists @scientistsorg.bsky.social Striving for a safer world since 1945
science policy | nuclear weapons | clean energy | STEM education | artificial intelligence | data privacy | much much more
Taylor Fravel @fravel.bsky.social Studying China's foreign and security policies and director of MIT's Security Studies Program
Pranay Vaddi @pranayrvaddi.bsky.social pers acct. fmr NSC46, State Dept. nukes, nonpro, arms control. Husband + suburban dad. All tweets/rt are my views alone.
https://strategicsimplicity.substack.com/
Richard Nephew @richardmnephew.bsky.social Senior Research Scholar at Columbia U. Former Anti-Corruption Coordinator at Dept of State (among other things), White House and Dept of Energy. Personal acct. Author of "The Art of Sanctions" (2018)
Målfrid Braut-Hegghammer @malfridbh.bsky.social Professor of War Studies, King’s College London
Founding Director of the Oslo Nuclear Project
Vali Nasr @valinasr.bsky.social Professor Johns Hopkins-SAIS, Fr Sr Advisor, State Dept, author of Iran's Grand Strategy https://a.co/d/egLBCgz
Héloïse Fayet @hfayet.bsky.social Chercheuse atomique au Centre des études de sécurité de l’Ifri, passée par le ministère des Armées. Également déléguée générale de WIIS France et membre du Young Generation Leadership Network.
« Pasionaria de la bomba » selon RB.
Chloë Mayoux @chloemayoux.bsky.social Nuclear Technology, European Empire, Global Africa | Ernest May Fellow @Harvard | Teaching Military History @BostonU
The New York Times @nytimes.com We seek the truth and help people understand the world. Not a subscriber? Your first month is now free in our app. https://nytimes.onelink.me/Xpht/zbx4nci9
Maxime Polleri @maximepolleri.bsky.social Assistant Professor of Anthropology at Université Laval. Author of “Radioactive Governance” (NYU, 2026). Japan, nuclear, disaster, waste. Personal website: www.maximepolleri.com
MIT Press @mitpress.bsky.social Committed to the daily re-imagining of what a university press can be since 1962.
Website: https://mitpress.mit.edu
The Reader (our home for excerpts, essays, & interviews): https://thereader.mitpress.mit.edu
MIT Press Direct: https://direct.mit.edu/
David Arceneaux @gdavidarceneaux.bsky.social Assistant Professor, University of Tennessee, Knoxville, Baker School of Public Policy and Public Affairs, Center for National Security and Foreign Affairs
Adam Mount @ajmount.com Deterrence, nuclear strategy, progressive foreign policy.
Fmr. FAS, CAP, CFR, Ph.D. Government, Georgetown.
Bio: ajmount.com.
Banners: @UAHIRISE.
Stanford CISAC @stanfordcisac.bsky.social Stanford's Center for International Security and Cooperation produces knowledge to build a safer world and trains the next generation of security specialists.
Visit us at: https://cisac.fsi.stanford.edu/
@berkeleyrisk.bsky.social @berkeleyrisk.bsky.social 
Weatherhead Center for International Affairs @weatherheadcenter.bsky.social Fueling pathbreaking social science research that delves deep to examine complex global issues / at Harvard since 1958
Harvard Kennedy School @harvardkennedy.bsky.social Ask what you can do.
hks.harvard.edu
Shata Shetty @shatashetty.bsky.social Director of the Asia-Pacific Leadership Network (@apln.network)
Previously Deputy Director of the European Leadership Network.
Interested in nuclear policy, arms control, great power politics, Asian security, and emerging tech. 
Outrider Foundation @outrider.org We support multimedia storytelling about nuclear threats and climate change 🌎 Read our newsletter: https://outrider.org/newsletter
@bpervaiz.bsky.social @bpervaiz.bsky.social 
Andrew Carnegie Foundation @carnegie.org Supporting ladders of opportunity and a more peaceful world.
Established by Andrew Carnegie in 1911. Formerly Carnegie Corporation of New York.
🔗 Learn more at carnegie.org
📩 Subscribe at carnegie.org/stay-informed/
Ivo Daalder @ivodaalder.bsky.social Former US Amb @NATO. Now Senior Fellow @BelferCenter. Host World Review Podcast. Author America Abroad Substack. Policy Wonk. Dog lover. Baseball fan. New Chicagoan. Old Dutchman.
Spenser A. Warren @spenserawarren.bsky.social Stanton Nuclear Security Fellow, Harvard's Belfer Center | Formerly UC IGCC | PhD, Indiana University | Michigan State Alum | Work on nuclear weapons, emerging tech, Russia, international security | Also football and Star Wars
Frank Kuhn @frankkuhn.bsky.social Doctoral Researcher @PRIF.org // Nuclear Deterrence and Arms Control // Cold War History // Military Technology, Operations and Strategy // Opinions my own
Council on Strategic Risks @councilonstrategicrisks.org CSR is dedicated to anticipating, analyzing and addressing core systemic risks to modern security. We work on climate and ecological security, biological and nuclear security, and track emerging risks as new technologies disrupt across all domains.
J. Luis Rodriguez @jluisrodriguez.com Assistant Professor at George Mason's Schar School of Policy and Government | Affiliate at Stanford CISAC | Adjunct non-resident fellow at CSIS PONI | PhD from Johns Hopkins | International security, international law, and Global South | 🇺🇸 🇲🇽 🏳️🌈
Laura Holgate @laurashholgate.bsky.social Former US UNVIE Ambo, #NSC44, gender champion, adventurous foodie, greyhound mom, world traveler, proud Princetonian. Personal acct; views my own.
atomicbell @atomicbell.bsky.social President and CEO of the Bulletin of the Atomic Scientists
The Debate - France 24 @f24debate.france24.com Monday - Thursday, 7:10pm CET 🇫🇷 on @en.france24.com and f24.my/live.bs
Join the conversation using #F24Debate
🔴 Live: f24.my/live.bs
▶️ Replay: f24.my/F24Debate.bs
Fred Kaplan @fredmkaplan.bsky.social Slate's War Stories columnist; author of The Bomb, Dark Territory, The Insurgents, 1959, Daydream Believers, The Wizards of Armageddon, and--most recently--A Capital Calamity (a novel); also jazz critic for Tracking Angle.
Alexander Sorg @alexsorg.bsky.social Postdoc, Hertie School | European security, nuclear umbrellas
Colleen Larkin @colleen-larkin.bsky.social Postdoc at IGCC. Columbia PhD. Wellesley alum. Narratives, nuclear weapons, foreign policy. She/her 💫🏳️🌈
National Security Archive @nsarchive.bsky.social An independent research institution that advocates for open government and uses FOIA to collect and publish declassified documents - https://nsarchive.gwu.edu - instagram.com/natsecarchive - tiktok.com/@natsecarchive
War on the Rocks @warontherocks.bsky.social Experience. Conflict. Commentary.
Join our community: https://warontherocks.com/membership/
Rebecca Davis Gibbons @professorrdg.bsky.social International relations professor focused on global order, nuclear weapons, and nonproliferation
The Center for a New American Security @cnas.bsky.social The Center for a New American Security develops strong, pragmatic, and principled national security and defense policies. Join us: cnas.org/join.
Stanley Center for Peace and Security @stanleycenter.org We partner with people, organizations, and the global community to drive global progress in climate change, nuclear weapons, and mass violence and atrocities.
Marion Messmer @mgmessmer.bsky.social Programme Director for International Security at Chatham House
Former BASIC, King's College London
Doreen Horschig @doreenhorschig.bsky.social Nukes, norms, and (counter-) proliferation ☢︎ | Fellow at Project on Nuclear Issues & @csis.org | Affiliate & PhD @ucf.bsky.social | formerly MIT, NYU, DAAD | 🇩🇪 🇺🇸
Michal Onderco @profonderco.bsky.social Professor of International Relations at Erasmus University Rotterdam, affiliated with Charles University in Prague. VU Amsterdam, EUI, CISAC, WIAS-alum. Nuclear weapons | foreign policy | CEE
Bulletin of the Atomic Scientists @thebulletin.org The best thinking on existential threats since 1945. Nuclear risk, climate change, and disruptive technologies. We set the #DoomsdayClock. thebulletin.org
Andrew Reddie @areddie.bsky.social Associate Research Professor @goldmanschool @ucberkeley; Founder @berkeleyrisk 
CSIS Project on Nuclear Issues @poni.csis.org @csis.org’s Project on Nuclear Issues (PONI) hopes to sustain a community of next generation nuclear experts & generate new ideas & debate on nuclear issues. Repost ≠ Endorsement
Tanvi Kulkarni @kulkarnitanvi.bsky.social International Politics| National Security| Nuclear Strategy
Senior Policy Fellow, Asia-Pacific Leadership Network
Visiting Fellow, IPCS NewDelhi
+ ISYPugwash and JNU
Views = Personal
Asia-Pacific Leadership Network @apln.network A network of political, military, diplomatic and thought leaders in the Asia-Pacific working to address security challenges and eliminate nuclear weapons risks.
Mansoor Ahmed @mansoorahmed.bsky.social Hon. Lecturer SDSC, Australian National University | IR, nuclear weapons, fissile materials, South Asia, conventional deterrence | Formerly CISS Islamabad, Harvard’s Belfer Center, QAU | Author Pakistan’s Pathway to the Bomb | Views personal
Tong Zhao @tongzhao.bsky.social Senior fellow @carnegieendow.bsky.social
Nuclear, arms control, nonproliferation, new mil tech, Asia-Pacific security, US-China.
Views my own.
https://carnegieendowment.org/people/tong-zhao?lang=en
Carnegie Endowment @carnegieendowment.org The Global Think Tank.
carnegieendowment.org
Eric Brewer @ebrewer.bsky.social Deputy VP at Nuclear Threat Initiative. Previously Director for Counterproliferation at the National Security Council and Deputy National Intelligence Officer for WMD at the National Intelligence Council. Personal account/views my own.
EU Non-Proliferation and Disarmament @eunpdc.bsky.social EU-supported consortium of independent think tanks to discuss measures against WMD proliferation as well as conventional weapons, including SALW
United Nations Institute for Disarmament Research @unidir.org Building a more secure world • Director Robin Geiss
World Nuclear News @worldnuclearnews.bsky.social The latest nuclear energy news from around the world. WNN is produced from the World Nuclear Association secretariat.
Website: https://www.world-nuclear-news.org/
Podcast: https://www.buzzsprout.com/1976153
Substack: https://substack.com/@worldnuclearnews
RUSI @rusi.bsky.social Royal United Services Institute for Defence and Security Studies. Founded in 1831, RUSI is the oldest defence and security think tank in the world.
Website 💻: https://rusi.org/
WhatsApp 📱: https://bit.ly/4h0M5FQ
Council on Foreign Relations @cfr.org 🌏 CFR is a resource for foreign policy news and analysis.
CFR takes no institutional positions on policy. Follows, reposts, likes ≠ endorsements.
✉️ Subscribe to our newsletters: http://cfr.org/newsletters
Union of Concerned Scientists @ucs.org The Union of Concerned Scientists puts rigorous, independent science to work to solve our planet's most pressing problems.
ucs.org
International Studies Association @isanet.bsky.social International Studies Association - A community of international studies scholars.
https://linktr.ee/intlstudiesassociation
International Security @intsecurity.bsky.social International Security is America's leading peer-reviewed journal of security affairs. It provides sophisticated analyses of contemporary, theoretical, and historical security issues. International Security is edited at @belfercenter.bsky.social.
Ben Loehrke @nonstrategic.bsky.social Program Officer for Nuclear Weapons at Stanley Center for Peace and Security
Ex-Twitter @nonstrategic
https://stanleycenter.org
Jiyoung Ko @jiyoungko.bsky.social IR @ Korea University
Study nuclear politics and nationalism
jiyoungko.org
Jackson du Pont @jacksondupont.bsky.social Currently Kings War Studies | Fmr @ CSRisks and Kerry Fellow @ Yale | focusing on how to bring lasting solutions to wicked problems | posts my own
Daniel Kroth @daniel-kroth.bsky.social Senior Researcher on security policy @CARMA | AI, Nuclear Deterrence & Intl Security Research | @FletcherSchool and @Michiganstateu alum | Views are my own
Foreign Affairs @foreignaffairs.com A magazine of U.S. foreign policy and international affairs, founded in 1922. https://www.foreignaffairs.com/
Sign up for our newsletters here: http://foreignaffairs.com/newsletter
Pavel Podvig @russianforces.org Russian nuclear forces, nuclear arms control, disarmament, verification. Strictly personal views here.
All coordinates are at http://russianforces.org/podvig
Matt Korda @mattkorda.bsky.social I count nukes for the Federation of American Scientists + the Stockholm International Peace Research Institute. 🇨🇦 Views my own.
Hans Kristensen @nukestrat.bsky.social Director, Nuclear Information Project, Federation of American Scientists. Tracking nuclear arsenals, co-author of Nuclear Notebook, SIPRI Yearbook. Opinions my own.
Website: https://fas.org/initiative/nuclear-information-project/
Jeffrey Lewis @armscontrolwonk.bsky.social William J. Perry Lecturer at Stanford CISAC & Distinguished Research Fellow FPRI. Member of the Bulletin of Atomic Scientists Science and Security Board & National Academies Committee on Int’l Security and Arms Control.
Ankit Panda @nktpnd.bsky.social Stanton Senior Fellow, Carnegie Endowment for International Peace; Author of ‘THE NEW NUCLEAR AGE’ (Polity) & ‘KIM JONG UN AND THE BOMB’ (Hurst/Oxford)
Subscribe to my newsletter (Nukesletter): https://panda.substack.com/
Andrey Baklitskiy @baklitskiy.bsky.social Nukes at UNIDIR. Views own, RT/❤️ ≠ endorsement
Nuclear Threat Initiative @nti.org A nonprofit, nonpartisan global security organization focused on reducing nuclear, biological, and emerging tech threats imperiling humanity.
Dr. Heather Williams @heatherwilly.bsky.social Director, Project on Nuclear Issues (PONI) and Sr Fellow, Defense and Security Department at CSIS
Associate Fellow, Project on Managing the Atom at Harvard Kennedy School
New Yorker by birth, Bostonian by choice
Kori Schake @kschake.bsky.social Leads AEI’s foreign and defense team, author of The State and the Soldier, contributing writer at The Atlantic. 2025-2026 Kissinger Chair at the Library of Congress. Californian. https://www.aei.org/profile/kori-schake/
Fiona Cunningham @fiona-cunningham.bsky.social Assistant Professor of Political Science at the University of Pennsylvania. Author of “Under the Nuclear Shadow” (Princeton, 2025). China, nukes, cyber, space, international security. She/her. Personal website: www.fionascunningham.com
Dr. Matthew J. Parent @matthewparent1.bsky.social Studying international security, military technology, and popular culture. Associate at Harvard's Project on Managing the Atom. PhD and MA from UConn (political science and human rights), MA from Catholic University, and BA from UMass.
Belfer Center for Science and International Affairs @belfercenter.bsky.social The Belfer Center for Science and International Affairs is the hub of Harvard Kennedy School's research, teaching, and training in international security and diplomacy, environmental and resource issues, and science and technology policy.
belfercenter.org
Dave Kearn @davekearnjr.bsky.social Son, brother, uncle. Teacher, retired bartender, (slowly) improving golfer. RIP E.B.
“It’s a fragile thing, this life we lead…”
Arms Control Association @armscontrolnow.bsky.social 
Stephen Herzog @herzogsm.bsky.social Professor of the Practice, James Martin Center for Nonproliferation Studies | Associate, Harvard Project on Managing the Atom | nuclear arms control, nonproliferation, disarmament, technology
Future of Life Institute @futureoflife.org We work on reducing extreme risks and steering transformative technologies to benefit humanity.
Learn more: futureoflife.org
James Acton @nuclear-jim.bsky.social Co-director of the Nuclear Policy Program at the Carnegie Endowment For International Peace. I spend a lot of time thinking about nuclear weapons, advanced nonnuclear technology, and escalation.
Rabia Akhtar @rabsaa.bsky.social Visiting Scholar, MTA, Belfer Center, HKS | Dean Social Sciences, University of Lahore, Director CSSPR https://csspr.uol.edu.pk/ PhD Security Studies, KSU | Author, The Blind Eye: US Nonprolif Policy towards 🇵🇰 Free e-book: https://csspr.uol.edu.pk/f2c
Andrew Facini @andrewfacini.com Senior Fellow, @councilonstrategicrisks.org working on nuclear weapons policy. Teaching and such at Harvard Extension. Views my own.
Nuke policy starter pack! https://go.bsky.app/8jiQV43
Dmitry Stefanovich @dvsteff.bsky.social Nukes, missiles, military, space, tech, music, cats, #STRATDELA and #HYPERHYPE 
Janina Dill @janinadill.bsky.social Professor of Global Security at Oxford, Co-director of ELAC (IHL, Law & Ethics of War, Attitudes toward Violence)
Stephen Walt @stephenwalt.bsky.social Harvard professor, realist, FP columnist. Tennis enthusiast, amateur musician, proud dad, & grateful husband. Troubled by the state of the world & looking for solutions. For speaking engagements contact John Bute at john@chartwellspeakers.com
Institute for the Study of War @thestudyofwar.bsky.social ISW is a policy research organization focused on U.S. national security. Email: press@understandingwar.org. For more: https://linktr.ee/understandingwar
Jon B. Wolfsthal @jonatomic.bsky.social Nuclear Fellow @ Pax Sapiens, former Bulletin of Atomic Scientists and State Department International Sec Advisory Board, CNAS Sr. Fellow, former National Security Council. No #manels, Yankees/Gunners.
Nick Kodama @nickkodama.bsky.social PhD candidate at Georgetown | Researching nukes, IR, Japan, East Asia | Also posting photos of my cat and food.
Alex Bollfrass @bollfrass.bsky.social Nuclear weapons and intelligence history.