Hans Kristensen
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nukestrat.bsky.social
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/ .. more

Hans Møller Kristensen is director of the Nuclear Information Project at the Federation of American Scientists. He writes about nuclear weapons policy there; he is coauthor of the Nuclear Notebook column in the Bulletin of the Atomic Scientists, and the World Nuclear Forces appendix in Stockholm International Peace Research Institute's annual SIPRI Yearbook. .. more

Political science 75%
Engineering 9%
Pinned
Our latest Nuclear Notebook is public: The changing nuclear landscape in Europe. It provides our overview of the nuclear situation, with focus on non-strategic nukes. All the players are increasing their nuclear postures. Check details here: www.tandfonline.com/doi/epdf/10....

Great work from PRC Prague and SWP Berlin on Russian and NATO nuclear signaling and reactions in the context of the Russian war on Ukraine. www.prcprague.cz/news/2025/12...

For infrastructure and operational developments, see also our recent Nuclear Notebook: x.com/nukestrat/st...
Peace Research Center Prague - Charles University Center of Excellence
This working paper by SWP and PRCP chronologically traces nuclear signaling in Russia’s war against Ukraine from autumn 2021 to January 2025, coding 452 Russian and Western public statements. Re...
www.prcprague.cz

The Trump regime, a friend of money and dirty industry but not the environment, delays protection of endangered Monarch butterfly. apnews.com/article/mona...
Trump administration delays decision on federal protections for monarch butterflies
The Trump administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely. The U.S.
apnews.com

Very sad to hear that Bill Burr at @NSArchive has passed away. Over the years his work of documenting nuclear history with targeted and relentless FOIA requests created The Nuclear Vault with invaluable collection of declassified documents and analysis. nsarchive.gwu.edu/project/nucl...

NYT investigation found Securities and Exchange Commission eased up on more than 60 percent of ongoing crypto cases when Trump took office. Cancelling investigations, easing penalties on crypto firms, many with direct ties to Trump. www.nytimes.com/2025/12/14/u...

Nothing to see here…

Great and timely piece by @andrewfacini.com and Mallory Stewart about the risk of Trump’s Golden Dome project triggering more strategic buildup. warontherocks.com/2025/12/we-m...
We Might Regret Golden Dome's Greatest Ambition
What happens when the United States tries to build a missile shield so ambitious that Russia and China start dreaming up weapons that no defense can stop?
warontherocks.com

Under the poor leadership of the Trump regime’s health boss RFK Jr, once-fringe views that vaccines hurt children have become the dominant view on the US Center for Disease Control advisory panel. The dangerous view is now driving federal health policy. www.washingtonpost.com/opinions/202...
Opinion | What RFK Jr.’s vaccine advisers revealed about their views
Understanding the mindset of vaccine skeptics helps to unveil what’s coming.
www.washingtonpost.com

Pacific bomber operations last couple of days:

• 11 Dec: 2 B-52s (at least one (60-0032) nuclear-capable) with Japan (no flight map released): x.com/jointstaffpa...

• 9 Dec: 2 Tu-95 (nuclear-capable) and 2 H-6K around Japan (flight map released). x.com/nukestrat/st...

The last remaining nuclear arms limitation treaty expires in less than two months. Russia and US have been unwilling to make a replacement treaty. Putin has said he would keep limit for one year and Trump has said that’s a good idea. We’re waiting…
www.reuters.com/world/china/...

If only we knew how to prevent this. Oh wait…

The full intelligence report is available here: www.fe-ddis.dk/globalassets...
www.fe-ddis.dk
The United States is for the first time mentioned as part of the threat picture in the latest Danish Defense intelligence assessment: The US now uses "its economic and technological strength as a means of power, including towards allies and partners." www.dr.dk/nyheder/udla...
USA beskrives på ny måde i trusselsvurdering: 'Noget af det mest følsomme og opsigtsvækkende'
USA er for første gang i årlig FE-rapport blevet nævnt som en negativ del af trusselsbilledet mod Danmark.
www.dr.dk

The Trump regime’s so-called national security strategy (reads more like a political manifesto) is sobering reading, pulling US back, undermining achievements/influence earned over a century, and work to pull Austria, Hungary, Italy, Poland away from EU. www.defenseone.com/policy/2025/...

Your can find the free article in two version:

• PDF-version on Taylor & Francis
www.tandfonline.com/doi/epdf/10....

• Web-version on @bulletin
thebulletin.org/premium/2025...
Nuclear Notebook: The changing nuclear landscape in Europe
This issue's column reviews the status of nuclear weapons and nuclear operations in Europe.
thebulletin.org

Another example of a headline misrepresenting what the article says. This one from BBC, an otherwise trustworthy source. The Chinese/Russian aircraft DID NOT violate South Korean airspace. www.bbc.com/news/article...

Hey @BBC, you should fix this. People remember headlines, not articles.

Honored to talk to WSJ about nuclear developments in Europe, including Russia’s nuclear-sharing arrangement in Belarus. www.wsj.com/video/series...
"We respect China's historic military buildup" is quite a surprising message from a US secretary of defense. www.politico.com/news/2025/12...

From the Department of Cringe.

Naming buildings to glorify a sitting president is a sign of impending autocrocy.

The length to which officials in this country are willing to go to kiss the ring of the Orange King is a disgrace and an embarrassment.

Bigotry is rearing its ugly face in this country in ways I think most Americans thought only happened in dictatorships and banana republics. The Trump regime is after everything brown, foreign, different. The last few days have been particularly ugly. www.washingtonpost.com/politics/202...
Trump rails against Somali migrants: ‘I don’t want them in our country’
The president blasted Minnesota’s Somali community as “garbage” in a rant also attacking Gov. Tim Walz and Rep. Ilhan Omar.
www.washingtonpost.com

Nothing like the Trump
Regime! While they shoot up alleged drug trafficking boats in the Caribbean, Trump pardons former Honduras president convicted for drug trafficking. 🤪
www.nytimes.com/2025/12/02/u...
Former President of Honduras Is Freed From Prison After Trump Pardon
www.nytimes.com

Reposted by Edgar Morgenroth

Imagine - after you have fought a brutal invader for almost 4 years who has killed tens of thousands of your people and ravished your country - that an orange man far away declares you have to surrender territory to the invader who will get immunity. apnews.com/article/ukra... 🤮
Ukraine peace plan darkens the mood across a war-torn nation
A proposed peace plan for Ukraine led by the United States has been met with anguish by many Ukrainians, who fear a post-war amnesty for Russian forces would erase accountability for alleged atrocitie...
apnews.com

More background from WP: White House blew past legal concerns in deadly strikes on drug boats www.washingtonpost.com/national-sec...
White House blew past legal concerns in deadly strikes on drug boats
The Trump administration sidestepped skeptical lawyers across national security agencies as it pursued a military campaign against alleged narcotraffickers, officials say.
www.washingtonpost.com

That fact that legal concern by the top JAG of a military command about whether Trump’s boat killings in the Caribbean are legal can be brushed aside www.nbcnews.com/politics/nat... makes me wonder if pledges to abide by international law in nuclear planning would also be brushed aside.
Top military lawyer raised legal concerns about boat strikes
The lawyer at U.S. Southern Command, which oversees the operations against alleged drug-smuggling boats near Venezuela, disagreed that the strikes are legal and was overruled, according to six sources...
www.nbcnews.com

Honored to speak at Niels Bohr Institute event yesterday on nuclear threats. Great discussion with Frank von Hippel (image), @tongzhao.bsky.social, @russianforces.org, Rebecca Slayton.

A warm-up for the Open World Conference next 3 days at University of Copenhagen. openworld.ku.dk

Scientists have analysed 10,000 marine animal autopsies to understand how plastic ingestion leads to death. They were surprised by how little plastic can be dangerous. www.bbc.com/news/article...

This is what happens when you toss plastic or don’t pick up what’s there.
From seabirds to sea turtles: the fatal toll of plastic revealed
A new study pinpoints the deadly thresholds of plastic ingestion for marine life.
www.bbc.com

After having scaled back environmental regulations and made it easier for industry to pollute the air, the Trump regime now wants to strip federal protections about 85 percent of all wetlands in the United States. www.nytimes.com/2025/11/17/c...
E.P.A. Rule Would Drastically Curb Protections for Wetlands
www.nytimes.com

As the Trump regime is hyping immigration threat to divert attention from real problems and carrying out Rambo-style photo-op stunts in US cities, NYT investigation finds this has diverted resources from real threats. www.nytimes.com/2025/11/16/u...
Homeland Security Missions Falter Amid Focus on Deportations
www.nytimes.com

Today saw two B-52Hs bombers (60-0059 and 60-0062) taking off from Morón Air Base in Spain for a Middle East mission. 60-0059 returned to Morón, but 60-0062 continued to Qatar and is now over Saudi Arabia. The third (61-0036) flew 2 missions over northern Europe last week.

Japan’s new PM is getting poor advice. US didn’t need to deploy nukes in Japan to deter during Cold War (Okinawa was emptied when it reverted to Japanese control). Tokyo turned blind eye to nukes on ships. No need to change: 3 no’s allow for consultation. www.straitstimes.com/asia/east-as...
Japan PM Takaichi wavers on nuclear arms question in sign of possible shift
Anti-nuclear groups in Japan say Tokyo is morally bound to oppose nuclear weapons after the WWII bombings. Read more at straitstimes.com. Read more at straitstimes.com.
www.straitstimes.com

While slashing government agencies and programs, laying off tens of thousands of people in the name of “government efficiency,” the Trump-Hegseth strongman stunt of renaming Department of Defense to Department of War could cost up to $2 billion. www.nbcnews.com/news/amp/rcn...