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New START Treaty Count: Russia Dips Below US Again

By Hans M. Kristensen Russian deployed strategic warheads counted by the New START Treaty once again slipped below the U.S. force level, according to the latest fact sheet released by the State Department. The so-called aggregate numbers show that Russia as of March 1, 2015 deployed 1,582 warheads on 515 strategic launchers. The U.S. count […]

04.02.15 | 3 min read
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H-Bomb History Published Over Government Objections

Physicist Kenneth W. Ford, who participated in the design of the hydrogen bomb in the early 1950s, has published a memoir of his experiences despite the objections of Energy Department reviewers who requested substantial redactions in the text. “Building the H Bomb: A Personal History” was released this month in softcopy by World Scientific Publishing Company. […]

03.25.15 | 3 min read
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The INF Crisis: Bad Press and Nuclear Saber Rattling

By Hans M. Kristensen Russian online news paper Vzglaid is carrying a story that wrongly claims that I have said a Russian flight-test of an INF missile would not be a violation of the INF Treaty as long as the missile is not in production or put into service. That is of course wrong. I […]

02.26.15 | 6 min read
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JASON on the Physics of Nuclear Weapons

Despite the extensive data obtained through the conduct of more than 1000 nuclear explosive tests, there is still much that is unknown or imperfectly understood about the science of nuclear weapons. A newly disclosed report prepared in 2011 by the JASON science advisory panel assessed efforts by the National Nuclear Security Administration (NNSA) to “develop […]

02.20.15 | 1 min read
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The Nuclear Weapons “Procurement Holiday”

It has become popular among military and congressional leaders to argue that the United States has had a “procurement holiday” in nuclear force planning for the past two decades. “Over the past 20-25 years, we took a procurement holiday” in modernizing U.S. nuclear forces, Major General Garrett Harencak, the Air Force’s assistant chief of staff […]

01.21.15 | 4 min read
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Size of U.S. Nuclear Arsenal Remains Classified

The U.S. government will not categorically declassify the number of weapons in the U.S. nuclear arsenal once and for all, but it will consider declassification of the size of the prior year’s arsenal on a case by case basis, the Department of Energy said last week. In May 2010, the Obama Administration declassified the fact […]

01.08.15 | 2 min read
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Rumors About Nuclear Weapons in Crimea

The news media and private web sites are full of rumors that Russia has deployed nuclear weapons to Crimea after it invaded the region earlier this year. Many of these rumors are dubious and overly alarmist and ignore that a nuclear-capable weapon is not the same as a nuclear warhead. Several U.S. lawmakers who oppose […]

12.18.14 | 7 min read
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FAS at Vienna Conference on Humanitarian Impact of Nuclear Weapons

By Hans M. Kristensen For the next week I’ll be in Vienna for the Conference on the Humanitarian Impact of Nuclear Weapons. This is the third in a series of conferences organized and attended by a growing number of countries and humanitarian organizations to discuss the unique risks nuclear weapons pose to humanity and life […]

12.05.14 | 3 min read
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Pentagon Review To Fix Nuclear Problems – Again

Less than a decade after the Pentagon conducted a major review to fix problems in the nuclear management of U.S. nuclear forces, the Pentagon today announced the results of yet another review. The new review identifies more than 100 fixes that are needed to correct management and personnel issues. The fixes “will cost several billion […]

11.14.14 | 4 min read
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Pentagon Review To Fix Nuclear Problems – Again

Less than a decade after the Pentagon conducted a major review to fix problems in the nuclear management of U.S. nuclear forces, the Pentagon today announced the results of yet another review. The new review identifies more than 100 fixes that are needed to correct management and personnel issues. The fixes “will cost several billion […]

11.14.14 | 1 min read
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The New York Times: Which President Cut the Most Nukes?

By Hans M. Kristensen The New York Time today profiles my recent blog about U.S. presidential nuclear weapon stockpile reductions. The core of the story is that the Obama administration, despite its strong arms control rhetoric and efforts to reduce the numbers and role of nuclear weapons, so far has cut fewer nuclear warheads from the […]

11.02.14 | 2 min read
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Polish F-16s In NATO Nuclear Exercise In Italy

By Hans M. Kristensen NATO is currently conducting a nuclear strike exercise in northern Italy. The exercise, known as Steadfast Noon 2014, practices employment of U.S. nuclear bombs deployed in Europe and includes aircraft from seven NATO countries: Belgium, Germany, Italy, the Netherlands, Poland, Turkey, and United States. The timing of the exercise, which is […]

10.27.14 | 7 min read
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