questionText: To ask the Secretary of State for Defence, how many Vanguard class submarines are deployed to provide continuous at sea deterrence.
answerText: The Royal Navy has provided the Continuous At Sea Deterrent for an unbroken 54 years with Operation RELENTLESS. However, we do not disclose these details for operational security reasons as to do so could or would, or would be likely to, prejudice the cap...
heading: Trident Submarines: Deployment