I am Hans M. Kristensen, director of the Nuclear Information Project at FAS. I will be blogging facts, analysis, and declassified documents about new nuclear weapon systems, changes in existing nuclear forces, and developments in the policy and doctrine that guide the use of nuclear weapons.
You may have noticed that the Cold War is over and the total nuclear weapons stockpiles are decreasing. But, surprise, all the nuclear weapons states continue to modernize their forces as if the weapons are going to be around for a very long time in significant numbers. And the nuclear planners have turned out to be very innovative when it comes to creating new missions for the remaining weapons.
I also co-author the Nuclear Notebook in the Bulletin of the Atomic Scientists and the World Nuclear Forces overview in the SIPRI Yearbook.
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.