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Why the UK's submarine nuclear deterrent line is susceptible to risk

16th November 2022 - 11:00 GMT | by Harry Lye in London


A Vanguard Class submarine, HMS Vigilant is shown alongside No 10 berth at HM Naval Base Clyde. (Photo: UK MoD/Crown Copyright)

Lengthy delays to the refit of HMS Vanguard and a fire on board HMS Victorious have exposed vulnerabilities in the UK's continuous at-sea deterrent (CASD).

Earlier this month, UK national newspaper the Daily Telegraph reported that a fire had broken out on the Vanguard-class submarine HMS Victorious while operating in the North Atlantic.

The paper reported that a fault in an electrical module was to blame and that the submarine had surfaced as a precaution.

While the fire was extinguished and the boat safely transited back to port, the incident exposed the fragility of the UK's nuclear deterrent. This issue has been compounded by the extensive time another vessel, HMS Vanguard, has spent in refit.

'With HMS Vanguard's refit several years behind schedule,

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Harry Lye


Harry Lye

Harry Lye was Senior Naval Reporter at Shephard Media.

Harry joined the company in 2021, …

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