SEALING THE BREACH Anti-submarine warfare, 1941-1943 Release Date: November 9, 1952 ... (Episode #3) After F.D.R. declared war on the Axis powers, America was already determined to help supply England in their battle against the Nazis. The U.S. Navy and Merchant Marines would help in bringing over tons and tons of continuous supplies across the Atlantic Ocean. But to do so means also facing the possibility of being torpedoed by a German U-Boat. The Battle of the Atlantic raged on for over 4 years as the Allies plan convoy after convoy to help defeat the Axis powers in Europe. The Germans fought furiously, but in the end they too would meet their doom. This episode focuses on the convoys in their hopes of helping the cause to win victory in the Battle of the Atlantic.