HMS Thule was a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 submarine

Submarine

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

 of the third group of the T class

British T class submarine

The Royal Navy's T class of diesel-electric submarines was designed in the 1930s to replace the O, P and R classes. Fifty-three members of the class were built just before and during the Second World War, where they played a major role in the Royal Navy's submarine operations...

. She was built as P325 at Devonport Dockyard, and launched on 22 October 1942. So far she has been the only ship of the Royal Navy

Royal Navy

The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 to bear the name Thule, after Thule

Thule

Thule Greek: Θούλη, Thoulē), also spelled Thula, Thila, or Thyïlea, is, in classical European literature and maps, a region in the far north. Though often considered to be an island in antiquity, modern interpretations of what was meant by Thule often identify it as Norway. Other interpretations...

, the mythological name for a northern island.

Service

Thule served in the Far East for much of her wartime career, where she sank thirteen junks, two lighters and five sampan

Sampan

A sampan is a relatively flat bottomed Chinese wooden boat from long. Some sampans include a small shelter on board, and may be used as a permanent habitation on inland waters. Sampans are generally used for transportation in coastal areas or rivers, and are often used as traditional fishing boats...

s with gunfire in the Strait of Malacca

Strait of Malacca

The Strait of Malacca is a narrow, stretch of water between the Malay Peninsula and the Indonesian island of Sumatra. It is named after the Malacca Sultanate that ruled over the archipelago between 1414 to 1511.-Extent:...

 in a twelve day period between 17 December 1944 to 29 December 1944. She also attacked a submarine, probably the and believed she had sunk it, but Thules torpedoes exploded prematurely and the submarine escaped unharmed. She went on to sink a further five sailing vessels and three coasters, as well as laying a number of mines.

She survived the war and continued in service with the Navy, finally being scrapped at Inverkeithing on 14 September 1962. Her first commander, Alastair Mars

Alastair Mars

Lieutenant Commander Alastair Campbell Gillespie Mars, DSO, DSC and Bar was a Royal Navy World War II submarine commander...

, wrote HMS Thule Intercepts, about her operations from commissioning in Scotland to the end of the war in Australia.