There were 470 U – Boats in the Germany navy and they played a deadly role in the elimination of millions of tonnage of shipping on the high seas. On April 20 Hitler committed suicide and the Regenbogen (Rainbow) was put into operation. This involved the planned mass scuttling of the German fleet. But the plan fell apart on May 8 when Germany surrendered unconditionally. Some Nazis had hoped that U Boats would provide one last escape route for the…