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Written Question
Nuclear Weapons
Friday 18th July 2025

Asked by: Lord Banner (Conservative - Life peer)

Question to the Ministry of Defence:

To ask His Majesty's Government what assessment they have made of the comments of former Cabinet Secretary Simon Case that the United Kingdom’s nuclear deterrent should be expanded to include a second means of launch in addition to the existing submarine capability.

Answered by Lord Coaker - Minister of State (Ministry of Defence)

This Government keeps the UK’s nuclear posture under constant review considering the international security environment and the actions of potential adversaries. Our nuclear deterrent can respond to any emerging crises.

The recent announcement that the UK is acquiring 12 nuclear capable F35-A fighter jets, and will join the NATO nuclear mission, is not a decision to acquire a second sovereign delivery system. It complements Continuous At Sea Deterrence, our operationally independent, sovereign deterrent, which remains the ultimate guarantor of our security.