In 2012 a Royal Navy submariner was jailed for 8 years for trying " to pass secrets to the Russians that could have undermined Britain 's national security " ; One element of this was information on " a secret operation undertaken by HMS '' Trafalgar '' . " After Operation Veritas , the attack on Al-Qaeda and Taliban forces following the September 11 attacks in the United States , '' Trafalgar '' entered Plymouth Sound flying the Jolly Roger on 1 March 2002 . She was welcomed back by Admiral Sir Alan West , Commander-in-Chief of the fleet and it emerged she was the first Royal Navy submarine to launch Tomahawk cruise missiles against Afghanistan
September 11 attacks
September 11 attacks
HMS Trafalgar (S107)