Hans M. Kristensen

Recent Activity from Hans M. Kristensen

Chinese Nuclear Missile Upgrade Near Dalian

By Hans M. Kristensen One of the last Chinese Second Artillery brigades with the old liquid-fuel DF-3A intermediate-range nuclear ballistic missile appears to have been upgraded to the newer DF-21 road-mobile, dual-capable, medium-range ballistic missile. A new satellite image posted on Google Earth from May 4, 2014, reveals major changes to what appears to be […]

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Nuclear Exercises Amidst Ukrainian Crisis: Time For Cooler Heads

By Hans M. Kristensen Less than a week after Russia carried out a nuclear strike exercise, the United States has begun its own annual nuclear strike exercise. The exercises conducted by the world’s two largest nuclear-armed states come in the midst of the Ukraine crisis, as NATO and Russia appear to slide back down into a […]

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Russian ICBM Force Modernization: Arms Control Please!

By Hans M. Kristensen In our Nuclear Notebook on Russian nuclear forces from March this year, Robert S. Norris and I described the significant upgrade that’s underway in Russia’s force of land-based intercontinental ballistic missiles (ICBMs). Over the next decade, all Soviet-era ICBMs will be retired and replaced with a smaller force consisting of mainly […]

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Nuclear Modernization Briefings at the NPT Conference in New York

By Hans M. Kristensen Last week I was in New York to brief two panels at the Third Session of the Preparatory Committee for the 2015 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (phew). The first panel was on “Current Status of Rebuilding and Modernizing the United States […]

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US Nuclear Weapons Stockpile Number Declassified: Only 309 Warheads Cut By Obama Administration

By Hans M. Kristensen After a transparency hiatus of four years, the Obama administration has declassified the size of its nuclear weapons stockpile: 4,804 warheads as of September 2013. The new stockpile size is 309 warheads fewer than the 5,113 warheads that the administration in 2010 reported were in the stockpile as of September 2009. […]

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China SSBN Fleet Getting Ready – But For What?

By Hans M. Kristensen China’s emerging fleet of 3-4 new Jin-class nuclear-powered ballistic missile submarines is getting ready to deploy on deterrent patrols, “probably before the end of 2014,” according to U.S. Pacific Command. A new satellite image taken in October 2013 (above) shows a Jin SSBN in dry dock at the Bohai shipyard in […]

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B61-12 Nuclear Bomb Design Features

By Hans M. Kristensen Additional design details of the new B61-12 guided standoff nuclear bomb are emerging with new images. The image above shows a full-scale B61-12 model hanging in a wind tunnel at Arnold Air Force Base. The test “uncovered a previously uncharacterized physical phenomenon,” according to Sandia National Laboratories, that would affect weapons performance. […]

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Obama Administration Decision Weakens New START Implementation

By Hans M. Kristensen After four years of internal deliberations, the U.S. Air Force has decided to empty 50 Minuteman III ICBMs from 50 of the nation’s 450 ICBM silos. Instead of destroying the empty silos, however, they will be kept “warm” to allow reloading the missiles in the future if necessary. The decision to […]

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