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  1. May 7, 2024 · Of the deployed warheads, FAS estimates 400 are on intercontinental ballistic missiles [ICBMs], 970 on submarine-launched ballistic missiles [SLBMs], and 300 are located at bomber bases in the United States and approximately 100 tactical bombs are at European bases.

  2. May 7, 2024 · The United States is modernizing its nuclear bomber force by upgrading nuclear command-and-control capabilities on existing bombers, developing enhanced nuclear weapons (the B61–12, B61–13, and the new AGM-181 Long-Range Standoff Weapon or LRSO), and designing a new heavy bomber (the B-21 Raider).

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  4. 2 days ago · Global nuclear stockpiles, January 2023. The following is a list of states that have admitted the possession of nuclear weapons or are presumed to possess them, the approximate number of warheads under their control, and the year they tested their first weapon and their force configuration.

  5. 3 days ago · Research and production took place at more than 30 sites across the US, the UK, and Canada. The project resulted in two types of atomic bombs, developed concurrently during the war: a relatively simple gun-type fission weapon and a more complex implosion-type nuclear weapon.

  6. May 23, 2024 · Born in the midst of Cold War secrecy, the Savannah River Site (SRS) has always operated safely and efficiently to execute its missions. During the Cold War, it produced one third of the nation’s weapons-grade plutonium and all of the nation’s tritium—both integral components of nuclear weapons.

  7. May 14, 2024 · Overview of United States's nuclear, chemical, biological, and missile capabilities and nonproliferation activities.

  8. May 14, 2024 · Information and analysis of proposals and progress in United States Nuclear Disarmament, including arsenal, capabilities, and policies.

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