Victory at Sea S01E03 - Sealing the Breach: Anti-Submarine Warfare, 1941-1943

Anti-submarine warfare, 1941-1943. With war now declared by the U.S., naval forces throughout the states have joined to bring convoys of supplies across the Atlantic Ocean to the Allies in England. German U-Boat wolf packs prey on the convoys but they steam valiantly onward despite terrible losses.