U boats were invented in 1914 for WW1
The Allies sunk German Uboats. Uboat, not you-boat. Uboats stand for Unterseeboot - undersea boat.
a group of German uboats that hunted Allied and US ships
The invention of radar helped the Allies to locate and sink the German U Boats.
Yes the Germans created uboats, they have had them since the dawn of time, litterally
The Germans then threatened to use only Uboats for war and blew up a few ships.
because of the alliances the US had made previous to the start of the war along with the threat of the German Uboats attacking US civilians and property.
items were in short supply for Britain because all their cargo ships bringing food and other things in from the US were torpeoded and sunk by the German UBoats
Nobody invented the German Shepared, that was just a dog in Germany and so people just call them German Shepareds.
they were invented to combat the German messerhmitt
The submarines attacked Pearl Harbor
About 300Bc.
1876