Triumph sailed to Australia in 1993, travelling 41,000 miles (66,000 km) submerged without support—the longest solo deployment so far by a Royal Navy nuclear submarine.

[5] In that same year, author Tom Clancy published a book called Submarine: a Guided Tour Inside a Nuclear Warship which was centred around Triumph and USS Miami.

When Triumph returned home after operations had ended, the boat flew the Jolly Roger, the traditional way of denoting live weapons had been fired.

[6] On 19 November 2000, Triumph ran aground travelling at 22 knots (41 km/h; 25 mph) and at a depth of 200 metres (660 ft) while off the western Scottish coast.

[7] In 2005, Triumph began a £300 million nuclear refuel and refitting period which also saw the installation of an updated 2076 bow, flank and towed array sonar and a new command and control system.

[4] Triumph returned to Devonport on 3 April 2011 flying a Jolly Roger adorned with six small tomahawk axes to indicate the missiles fired by the submarine in the operation.

[21] In December 2024, the submarine departed Faslane for the final time sailing to Devonport for her planned decommissioning early in the new year.