The U.S. Department of Energy’s National Nuclear Security Administration has completed the Last Production Unit of the W88 Alteration 370 programme. The multiyear effort modernises the W88 nuclear warhead carried on board Ohio-class ballistic missile submarines.

U.S. National Nuclear Security Administration completes final production unit of W88 warhead upgrade

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The U.S. Department of Energy’s National Nuclear Security Administration has completed the Last Production Unit of the W88 Alteration 370 programme.

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