Italian submarines of World War II

The Italian submarine fleet of World War II was one of the largest in the world at the time, with 116 submarines. It saw action during the Second World War, serving mainly in the Mediterranean and the Atlantic. During the conflict 88 submarines, 75% of its total strength, were lost. In the Mediterranean, Italian submarines sank 21 merchantmen and 13 enemy warships for a total of around 100,000 ton; in addition, they were often used for carrying the crews and human torpedoes of the Decima Flottiglia MAS (a unit which sank or disabled warships totalling 78,000 tons and 20 merchant ships totalling 130,000 GRT). In the Atlantic, Italian submarines sank Allied merchant ships totalling 593,864 tons.