Type U 151 U-boats were a class of large, long-range submarines initially constructed during World War I to be merchant submarines and later used by the Kaiserliche Marine (Imperial German Navy).
The Type UB III submarine was a class of U-boat built during World War I by the German Imperial Navy.
Germany (Deutschland), officially the Federal Republic of Germany (Bundesrepublik Deutschland), is a sovereign state in central-western Europe.
London is the capital and most populous city of England and the United Kingdom.
Morecambe is a town on Morecambe Bay in Lancashire, England, which had a population of 34,768 at the 2011 Census.
Operation Deadlight was the code name for the Royal Navy operation to scuttle German U-boats surrendered to the Allies after the defeat of Germany near the end of World War II.
SM UB-155 was a German Type UB III submarine or U-boat built for the German Imperial Navy (Kaiserliche Marine) during World War I. She was never commissioned into the German Imperial Navy but surrendered to France on 9 March 1919 in accordance with the requirements of the Armistice with Germany and broken up at Brest in July 1921.
A submarine (or simply sub) is a watercraft capable of independent operation underwater.
The Type IX U-boat was designed by Nazi Germany's Kriegsmarine in 1935 and 1936 as a large ocean-going submarine for sustained operations far from the home support facilities.
World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.