By Hans M. Kristensen, Matt Korda | May 10, 2022
This Nuclear Notebook examines the status of the US nuclear arsenal, which remained roughly unchanged in the last year, with the Defense Department maintaining an estimated stockpile of approximately 3,708 warheads. Of these, only about 1,744 warheads are deployed, while approximately 1,964 are held in reserve. Additionally, approximately 1,720 retired warheads are awaiting dismantlement, giving a total inventory of approximately 5,428 nuclear warheads. Of the approximately 1,744 warheads that are deployed, 400 are on landbased intercontinental ballistic missiles, roughly 944 are on submarine-launched ballistic missiles, 300 are at bomber bases in the United States, and 100 tactical bombs are at European bases.