This question is somewhat vague in it's reference. U boats sank many ships. Possibly "the ship" was the Lusitania, a passenger liner. It was sunk on May 7th 1915 off the coast of Ireland. The Germans justified this horrible act by their belief that the ship was also carrying war munitions to Britain, which has been verified in more recent years. The ship had a number of Americans on board which strengthened the argument that the U.S. should enter the war, which it did on April 6, 1917.
There is no ship known, it is not the Lusitania, which was an English ship.
The Lusitania, Califorian,Britannic,Carpathia.
a German U-boat.
the lusitania
Lusitania wasn't a German submarine, it was an American merchant ship that was sunk by German submarines.
Clement
the siege
sumbmarine warefare
The Titanic was advertised as "unsinkable". Sank in 1912 in the North Atlantic after hitting an ice berg.The German battleship SMS Ostfrieslandwas claimed to be an unsinkable "super-battleship". It was sunk in 1921.The German Battleship Bismarckwas also claimed to be unsinkable but was sunk after a fierce sea-battle in 1941.
In 1915, the British ocean liner Lusitania was torpedoed by a German u-boat (submarine) and sunk because the central powers believed the ship was being utilized to transport contraband (war materials) to the United Kingdom.
RMS Lusitania (RMS stands for Royal Mail Ship).
Titanic