Summary and Key Points: The Royal Navy's Vanguard-class ballistic missile submarines, introduced in 1994, are nearing the end of their service but have proven invaluable. These submarines, the largest built in the UK, displace nearly 16,000 tons and carry the Trident missile, ensuring long-term deterrence capabilities.
-Four Vanguard-class vessels—Vanguard, Victorious, Vigilant, and Vengeance—are nuclear-powered, allowing for extended deployments.
-Equipped with advanced sonar and torpedo systems...