Arms Control

First 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…

British Defense Review Ends Nuclear Reductions Era March 17, 2021

By Hans M. Kristensen The United Kingdom announced yesterday that it has decided to abandon a previous plan to reduce it nuclear weapons stockpile to…

The 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…

Trump 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.

USAF Plans To Expand Nuclear Bomber Bases November 17, 2020

The US Air Force is working to expand the number of strategic bomber bases that can store nuclear weapons from two today to five by the 2030s. The plan will also significantly expand the number of bomber bases that store nuclear cruise missiles from one base today to all five bombers bases by the 2030s.

Environmental Assessment Reveals New Details About the Air Force’s ICBM Replacement Plan November 3, 2020

Any time a US federal agency proposes a major action that “has the potential to cause significant effects on the natural or human environment,” they must complete an…

US Officials Give Confusing Comparisons Of US And Russian Nuclear Forces October 22, 2020

In their effort to paint the New START treaty as insufficient and a bad deal for the United States and its allies, Trump administration official have recently made statements suggesting the treaty limits the US nuclear arsenal more than it limits the Russian arsenal.

At 11th Hour, New START Data Reaffirms Importance of Extending Treaty October 1, 2020

Just four months before the New START treaty is set to expire, the latest set of so-called aggregate data published by the State Department shows the…

Remembering Hiroshima and Nagasaki, 75 Years After August 5, 2020

Seventy-five years later, we commemorate the nuclear attacks and the unspeakable human suffering they inflicted, which remind us of the uniquely destructive capability of nuclear weapons and the importance of ensuring that they are never used in anger again.

75 Years Ago: The Trinity Nuclear Test July 16, 2020

The first ever nuclear detonation––known as the Trinity test––took place in New Mexico on July 16th, 1945. In the decades that followed, nuclear testing contaminated lands, oceans, and people, and triggered a nuclear arms race that continues to this day.