Technology

MOD Gov Technology

UK nuclear deterrence: the facts

Information about the UK’s continuous at sea deterrent (CASD) and the Successor programme to replace the Royal Navy’s Trident missile Vanguard Class Submarines.

The protection and defence of the UK is a primary responsibility of the government. The government is committed to maintaining the UK’s national nuclear deterrent based on a ballistic missile submarine for as long as the global security situation makes that necessary.

The continuous at sea deterrent (CASD) has provided the United Kingdom’s ultimate security insurance policy every day for the last 46 years.

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