Nuclear weapons issues
New bomb: The Pentagon has announced a new nuclear bomb, the B61-13. The B61-12 is now in production and will be forward deployed in Europe. But it has a dial-a-yield that maxes out at 50 kilotons. The new B61-13 will max out at 360 kt to get at hardened deeply buried targets (both have limited earth-penetrating capabilities). At one time, production of the B61-12 at least potentially signified retirement of the 1.2 megaton surface burst B83 strategic bomb, but now production of the B61-13 will probably be relatively quick at the tail end of already scheduled B61-12 production.
See: https://www.defense.gov/News/Releases/Release/Article/3571660/department-of-defense-announces-pursuit-of-b61-gravity-bomb-variant/ and https://media.defense.gov/2023/Oct/27/2003329624/-1/-1/1/B61-13-FACT-SHEET.PDF
See excellent analysis by the Federation of American Scientists:
https://fas.org/publication/biden-administration-to-build-a-new-nuclear-bomb/
Strategic Posture Review: Commissioned by Congress,
“The Commission recommends that a strategy to address the two-nuclear-peer threat [Russia and China] environment be a prerequisite for developing U.S. nuclear arms control limits for the 2027-2035 timeframe. The Commission recommends that once a strategy and its related force requirements are established, the U.S. government determine whether and how nuclear arms control limits continue to enhance U.S. security…”
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