Within Gosport’s marina in England lies HMS Alliance—Britain’s only surviving World World II–era submarine. The Alliance is the showpiece of the Royal Navy Submarine Museum, which spotlights several submarines, a variety of sub artifacts, an expansive weapons collection, and model submarines. The museum surveys the fascinating history of naval units that were vital in the World Wars and the Cold War.
The 281-foot Alliance was an Overseas Patrol A-class submarine. In response to the Cold War, the Royal Navy modernized the Alliance for a new Soviet submarine interceptor role. During her refitting, the forward and aft hull section was rebuilt, and the submarine’s sonar updated.
The hull of the Alliance was rusting away at the Submarine Museum until a £7 million restoration program began in earnest in 2011. The exterior of the sub has been fully restored, and was unveiled in July 2013. Holes at the front were filled and the exterior was freshly painted. The entire restoration was completed in March 2014, and the Alliance opened for guided tours.