Watch Grey Wolves Part 2 - Nowhere To Hide

Hitler was the proof that Germans did not understand the sea. Fortunately for him, his submariners did, and he had good reason to hand out awards to his U-Boat commanders. They had been preparing for war against England following the anglo german naval agreement of 1935. When war broke out, only 57 U-Boats were available. He persuaded engineers that more boats were urgently required.

Grey Wolves Part 2 - Nowhere To Hide is a 2014 documentary with a runtime of 58 minutes.