Das Boot

The battle of Atlantic in world word II was, the German sub-marine U-Boats destroyed more than a thousand ships and they potential to disturb US - England logistic.

Winston Churchill said if we can handle the U-Boat, we can win the war but it was not easy.

U-Boat have secret code communication between each other of U-Boat, that machine called Enigma, something like type writer.

Finally by found a new technology of radar and snatched of Enigma, the U-bolt changes status from hunter become hunting.