Cherbourg-Octeville is a city and former commune situated at the northern end of the Cotentin peninsula in the northwestern French department of Manche.
Dordrecht, colloquially Dordt, historically in English named Dort, is a city and municipality in the Western Netherlands, located in the province of South Holland.
The Type UB III submarine was a class of U-boat built during World War I by the German Imperial Navy.
Type UC III minelaying submarines were used by the Imperial German Navy (Kaiserliche Marine) during World War I. They displaced at the surface and submerged, carried guns, 7 torpedoes and up to 14 mines.
Germany (Deutschland), officially the Federal Republic of Germany (Bundesrepublik Deutschland), is a sovereign state in central-western Europe.
SM U-57 was one of the 329 submarines serving in the Imperial German Navy in World War I. U-57 was engaged in naval warfare and took part in the First Battle of the Atlantic.
A submarine (or simply sub) is a watercraft capable of independent operation underwater.
Swansea (Abertawe), is a coastal city and county, officially known as the City and County of Swansea (Dinas a Sir Abertawe) in Wales, UK.
Type VII U-boats were the most common type of German World War II U-boat.
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.