The Uboat was a submarine made by the Germans
Old Answer: Lusitania was the ship that was sunk in World War 1 on the 1st May 1915, but I don't know about World War 2. New Answer: The Athenia was sunk by the German's in 1939.
Primarily over 2,000 merchant vessels, with a sprinkling of allied warships.
Lusitania
The Lusitania.
the Lusitiania. Don't quote me on the spelling.
Otto Kretschmer
The Bismarck .
ther are tenships
The RMS Lusitania was sunk off the Irish coast in May 1915. By that time the war had been going on for ten months. There were 128 Americans among the 1500 killed, and outrage over this in American was a factor in America's eventual declaration of war against Germany and the Central Powers. But that declaration of war did not come for another two years.
103 merchant ships were sunk in world war one
Clement