Watch the 2021 Doomsday Clock announcement LIVE on January 27 at 10am EST

Nuclear Risk

Appendix B: Deployments by Country, 1951-1977

By Robert S. Norris, William M. Arkin, William Burr | Nuclear Notebook

World Plutonium Inventories

By Robert S. Norris, William M. Arkin | Nuclear Notebook

French and British Nuclear Forces, 1999

By Robert S. Norris, William M. Arkin | Nuclear Notebook

Chinese Nuclear Forces, 1999

By Robert S. Norris, William M. Arkin | Nuclear Notebook

Russian Strategic Nuclear Forces, End of 1998

By Robert S. Norris, William M. Arkin | Nuclear Notebook

U.S. Strategic Nuclear Forces, End of 1998

By Robert S. Norris, William M. Arkin | Nuclear Notebook