The Nonproliferation and Disarmament Challenges of Naval Nuclear Propulsion
A so-called loophole might allow a non-nuclear weapon state (NNWS) to use a naval reactor program to acquire nuclear weapons by taking nuclear material outside of safeguards and then potentially diverting some of that material. Additionally, nuclear-armed states with nuclear-powered warships might use their naval reactor programs to justify keeping a substantial inventory of highly enriched uranium (HEU)3 that could be quickly converted to nuclear weapon use or low enriched uranium (LEU) that could also be converted, but with more steps required to boost the LEU to HEU. Recognizing these and related nonproliferation and disarmament challenges, this report presents a proposal for the 2020 Non-Proliferation Treaty (NPT) Review Conference: a naval reactor quid pro quo (QPQ) for nuclear- armed states4 and NPT non-nuclear weapon states.
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.