British Submarine HMS X2

HMS X2 was an Archimedes-class submarine operated by the British Royal Navy during World War Two. Originally the Italian Regina Marina submarine Galileo Galilei, it was captured on 19 June 1940 after an engagement with the British anti-submarine warfare trawler HMS Moonstone.

Towed to Port Said, she was repaired and commissioned into the Royal Navy as HMS X2. This was later changed to HMS P711. During her service she as used as a training submarine in the east. Following the conclusion of the Second World War she was scrapped in January 1946.