U-Boats were important to Germany, because that's the only navy they really had. They had some surface vessels, but they amounted to just about "token" forces. Even though the British considered them abit of a challenge in the beginning, they really meant little to the US Navy; of which the German surface elements were neutralized prior to Pearl Harbor anyway (Dec '41).
Germany had to fight a "Guerre de Course" (sinking supply ships) because they possessed no battle fleets; neither battleship nor aircraft carrier in WWII.
Had Germany possessed a first rate battle fleet, they could have avoided a merchant ship war and clashed on the high seas in the traditional way. But they didn't have one, thus the importance of their submarines.
uboat
The Uboat was a submarine made by the Germans
It was the German way of saying "submarine" which properly should be called a "submersible." It is a shortening of "unterseeboot" to just uboat.
885.853199999 metres
Short for Unterseeboot - literally Undersea boat
In World WarII, the germans named it a uboat
UBoat
24 hours
The u boat can dive 200 to 250feet deep
yes
How many knots u have in ur grassy butt
The Allies sunk German Uboats. Uboat, not you-boat. Uboats stand for Unterseeboot - undersea boat.