Attack and Sink: The Battle of the Atlantic Summer 1941

SUMMARY: This convoy must not get through--U-boats pursue, attack and sink. This was the signal that Admiral Dnitz sent to the commanders of the 21 U-boats of the Markgraf wolf-pack on September 9, 1941 just before the United States entered the war. Sixty-three merchant ships were strung out in 12 columns abreast, covering 25 miles of inhospitable ocean. They set sail from Nova Scotia at a time when the German U-boats were sinking more than one hundred ships a month and the US Navy could do...