Thermonuclear weapons, sometimes referred to as Hydrogen, or “H-bombs,” utilize both atomic fission and nuclear fusion to create an explosion. The combination of these two processes releases massive amounts of energy, hundreds to thousands of times more powerful than an atomic bomb. Origins Development of the hydrogen bomb dates to the 1940s during The Manhattan […]
Factsheets & Analysis on Nuclear Weapons
Strategic Arms Reduction Treaty (START I)
The Strategic Arms Reduction Treaty (START I), signed in 1991, was a bilateral arms control treaty between the United States and the Soviet Union. The result of the agreement was the first significant reduction in the number of strategic nuclear weapons in both the U.S. and the Soviet stockpiles. It entered into force in 1994, […]
2022 Nuclear Posture Review
On October 27, 2022, the Biden administration released the unclassified version of its 2022 Nuclear Posture Review (NPR). The document states that nuclear weapons provide a unique deterrent that no other element of U.S. military power can replace and that a safe, secure, and effective nuclear deterrent undergirds all U.S. national defense priorities. The NPR […]
The Goldsboro B-52 Crash
In January 1961, a B-52 Stratofortress carrying two thermonuclear Mark-39 nuclear weapons experienced a fuel leak, and began to break apart mid-air over Goldsboro, North Carolina. As the pilots lost control of the aircraft, one of the bombs accidentally ejected. Luckily, its attached parachute successfully deployed and allowed it to float slowly towards the ground […]
Summary: Fiscal Year 2023 National Defense Authorization Act (S.4543)
as passed by the Senate Armed Services Committee Table numbers in parentheses are increases or decreases from the FY23 Request FY23 requested levels come from the Center for Arms Control and Non-Proliferation’s Fiscal Year 2023 Defense Budget Request Briefing Book Numbers may not add due to rounding Total National Defense Discretionary Spending Authorization (050) *Does […]
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