Video Shows Earth-Penetrating Capability of B61-12 Nuclear Bomb

By Hans M. Kristensen and Matthew McKinzie* The capability of the new B61-12 nuclear bomb seems to continue to expand, from a simple life-extension of an existing bomb, to the first U.S. guided nuclear gravity bomb, to a nuclear earth-penetrator with increased accuracy. The National Nuclear Security Administration (NNSA) previously published pictures of the drop […]

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North Korea’s Fourth Nuclear Test: What Does it Mean?

By Charles D. Ferguson North Korea’s boast on January 5 about having detonated a “hydrogen bomb,” the colloquial name for a thermonuclear explosive, seems highly hyperbolic due to the relatively low estimated explosive yield, as inferred from the reported seismic magnitude of about 4.8 (a small- to moderately-sized event). More important, I think the Korean Central […]

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Kalibr: Savior of INF Treaty?

By Hans M. Kristensen With a series of highly advertised sea- and air-launched cruise missile attacks against targets in Syria, the Russian government has demonstrated that it doesn’t have a military need for the controversial ground-launched cruise missile that the United States has accused Russia of developing and test-launching in violation of the 1987 Intermediate-Range […]

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Adjusting NATO’s Nuclear Posture

By Hans M. Kristensen The new Polish government caused a stir last weekend when deputy defense minister Tomasz Szatkowski said during an interview with Polsat News 2 that Poland was taking “concrete steps” to consider joining NATO’s so-called nuclear sharing program. The program is a controversial arrangement where the United States makes nuclear weapons available […]

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General Cartwright Confirms B61-12 Bomb “Could Be More Useable”

By Hans M. Kristensen General James Cartwright, the former commander of U.S. Strategic Command and former Vice Chairman of the Joint Chiefs of Staff, confirmed in an interview with PBS Newshour that the increased accuracy of the new guided B61-12 nuclear bomb could make the weapon “more useable” to the president or national-security making process. […]

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Russian Pacific Fleet Prepares For Arrival of New Missile Submarines

By Hans M. Kristensen Later this fall (possibly this month) the first new Borei-class (sometimes spelled Borey) nuclear-powered ballistic missile submarine (SSBN) is scheduled to arrive at the Rybachiy submarine base near Petropavlovsk on the Kamchatka Peninsula. [Update September 30, 2015: Captain First Rank Igor Dygalo, a spokesperson for the Russian Navy, announced that the Aleksander […]

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