Sorry, I ran out of credit pink viagra for bipolar and obesity As my biography of the great astronomer Bernard Lovell will show, his wartime work on short-wave radar was of vital importance in defeating the U-boat threat. The device he and his team created for Coastal Command wreaked a fearful toll upon them from March 1943. They could not cross the Bay of Biscay without being attacked. By August the Battle of the Atlantic was won and American armies were able to cross the ocean safely in time for D-Day.