FAS’s Contribution to Ending the Cold War Nuclear Arms Race
![](https://fas.org/wp-content/uploads/2016/05/FvHandSakharov.jpg)
by Frank von Hippel
“When, at Jeremy Stone’s instigation, I was elected chair of the Federation of American Scientists in 1979, I had no idea what an adventure that I was about to embark upon. This adventure was triggered by President Reagan taking office in 1981 and resulted in FAS making significant contributions to ending the U.S.-Soviet nuclear arms race and the Cold War. This was not the President Reagan we remember now as the partner of Mikhail Gorbachev in ending the Cold War. This was a president who had been convinced by the Committee on the Present Danger that the United States was falling behind in the nuclear arms race and was in mortal danger of a Soviet first nuclear strike…”
The SIPRI chapter describes the nuclear weapon modernization programs underway in each nuclear-armed state and provides estimates for how many nuclear warheads each country possesses.
FAS researchers Hans Kristensen and Matt Korda with the Nuclear Information Project write in the new SIPRI Yearbook 2024, released today.
The total number of U.S. nuclear warheads are now estimated to include 1,770 deployed warheads, 1,938 reserved for operational forces. An additional 1,336 retired warheads are awaiting dismantlement, for a total inventory of 5,044 warheads.
A military depot in central Belarus has recently been upgraded with additional security perimeters and an access point that indicate it could be intended for housing Russian nuclear warheads for Belarus’ Russia-supplied Iskander missile launchers.