Nuclear Security & Deterrence Monitor Vol. 29 No. 47
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Nuclear Security & Deterrence Monitor
Article 2 of 10
December 19, 2025

NNSA completes W88 Alt 370 warhead last production unit, pivots to SLCM-N

By ExchangeMonitor

The Department of Energy’s National Nuclear Security Administration (NNSA) completed the last production unit of the W88 Alteration 370, a program to modernize the W88 nuclear warhead over several years, NNSA announced Tuesday.
The W88 nuclear warhead entered…

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