Underseaboats.
In World WarII, the germans named it a uboat
Underseaboat.
The Bismarck .
Enigma.
The world's first atomic powered submarine was the USS Nautilus.
German soldiers during World War I were called "Huns" by the American soldiers. The Germans called their soldiers "The Bosch" during World War I.
The USS Nautilus (SSN-571) was the world's first operational nuclear submarine.
Red Army.
The drink Fanta was developed in Germany 1941
The submarine you are thinking about was the USS Nautilus. It was the world's first nuclear powered submarine and commissioned into the US Navy in 1955
USS Nautilus
The Dumbo Ship