British nuclear weapons have never had credible independent military value. They were acquired and have been maintained as an expensive exercise in political and diplomatic prestige; primarily to impress and influence allies rather than deter adversaries. Whether that approach was ever worthwhile is questionable, but it is certainly no longer valid.
A decision to replace Trident in any form would not only undercut non-proliferation, but would undermine Britain’s credibility to act on key international issues, such as climate change. It would also represent a hugely wasteful financial commitment at a time when conventional defence and other budgets are under intense pressure.
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