If Arms Control Collapses, US and Russian Strategic Nuclear Arsenals Could Double In Size February 7, 2023
Russian noncompliance with New START Treaty makes retaining limits on strategic nuclear forces even more important.
Read moreArms Control
The 2022 Nuclear Posture Review: Arms Control Subdued By Military Rivalry October 27, 2022
On 27 October 2022, the Biden administration finally released an unclassified version of its long-delayed Nuclear Posture Review (NPR). The classified NPR was…
Read moreNew Environmental Assessment Reveals Fascinating Alternatives to Land-Based ICBMs July 13, 2022
A new Air Force environmental assessment reveals that it considered basing ICBMs in underground railway tunnels––or possibly underwater.
Read moreAmidst Nuclear Saber Rattling, New START Treaty Demonstrates Importance April 6, 2022
Shortly after Russian military forces invaded Ukraine and President Vladimir Putin said that he had ordered Russian nuclear forces on high combat alert – apparently to deter…
Read moreFlying Under The Radar: A Missile Accident in South Asia April 4, 2022
For the first time ever, a nuclear-armed state accidentally launched a missile at another nuclear-armed state. How did this happen?
Read moreAfter Trump Secrecy, Biden Administration Restores US Nuclear Weapons Transparency October 6, 2021
The Biden administration yesterday afternoon declassified the number of nuclear weapons the United States possesses. The act reverses the secrecy of the Trump administration, which denied release of the number for three years, and restores the nuclear transparency of the Obama administration.
Read moreFirst New START Data After Extension Shows Compliance April 6, 2021
By Hans M. Kristensen The first public release of New START aggregate numbers since the United States and Russia in February extended the agreement for five years…
Read moreBritish Defense Review Ends Nuclear Reductions Era March 17, 2021
By Hans M. Kristensen and Matt Korda [Article updated May 11, 2021] The United Kingdom announced yesterday that it has decided to abandon…
Read moreThe Treaty on the Prohibition of Nuclear Weapons Enters Into Force Today January 22, 2021
The Treaty on the Prohibition of Nuclear Weapons (TPNW) enters into force today, 90 days after the deposit of the 50th instrument of ratification. So…
Read moreTrump Administration Again Refuses To Disclose Nuclear Weapons Stockpile Size December 3, 2020
The Trump administration has denied a request from the Federation of American Scientists to disclose the size of the US nuclear weapons stockpile and the number of dismantled warheads.
Read more