HMS Belfast is a museum ship, originally a Royal Navy light cruiser, permanently moored in London on the River Thames and operated by the Imperial War Museum. Construction of Belfast, the first Royal Navy ship to be named after the capital city of Northern Ireland, and one of ten Town-class cruisers, began in December 1936. She was launched on St Patrick's Day, 17 March 1938. Commissioned in early August 1939 shortly before the outbreak of the Second World War, Belfast was initially part of the British naval blockade against Germany. In November 1939 Belfast struck a German mine and spent more than two years undergoing extensive repairs. Belfast returned to action in November 1942 with improved firepower, radar equipment and armour. Belfast saw action escorting Arctic convoys to the Soviet