By Hans M. Kristensen, Matt Korda | Jan 12, 2021
The US nuclear arsenal remained roughly unchanged in the last year, with the Defense Department maintaining an estimated stockpile of approximately 3,800 warheads. Of these, only 1,800 warheads are deployed, while approximately 2,000 are held in reserve. Additionally, approximately 1,750 retired warheads are awaiting dismantlement, giving a total inventory of approximately 5,550 nuclear warheads.