US Accelerates Upgrades for its Arsenal of Nuclear-Armed, Submarine-Launched Trident II D5s

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Nuclear-Armed Trident II D5 missiles rest in 44-foot long missile tubes built into ballistic missile submarines quietly patrolling the undersea domain - to ensure security and peace.

The Navy is beginning the process of evaluating additional upgrades and technical adjustments to the sub-launched Trident II D5 nuclear weapon such that it can serve for decades well beyond its current service life extending to 2040.
The Navy has already been working on technical upgrades to the existing Trident II D5 in order to prevent obsolescence and ensure the missile system remains viable for the next several decades.


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