British submarines used torpedoes to interdict the Axis supply shipping to North Africa, while Fleet Air Arm Swordfish
<unk> <unk> <unk> <unk> <unk> <unk> Large tonnages of merchant shipping were sunk by submarines with torpedoes in both the Battle of the Atlantic and the Pacific War.<unk> Large tonnages of merchant shipping were sunk by submarines with torpedoes in both the Battle of the Atlantic and the Pacific War.