![Italian U-boats and a Torpedo boat in the harbour of Venice, Italy on Nov. 6, 1943, after German troops had occupied the city. A German sentry stands guard on the submarine. (AP Italian U-boats and a Torpedo boat in the harbour of Venice, Italy on Nov. 6, 1943, after German troops had occupied the city. A German sentry stands guard on the submarine. (AP](https://c8.alamy.com/comp/2NDTMHE/italian-u-boats-and-a-torpedo-boat-in-the-harbour-of-venice-italy-on-nov-6-1943-after-german-troops-had-occupied-the-city-a-german-sentry-stands-guard-on-the-submarine-ap-photo-2NDTMHE.jpg)
Italian U-boats and a Torpedo boat in the harbour of Venice, Italy on Nov. 6, 1943, after German troops had occupied the city. A German sentry stands guard on the submarine. (AP
Digital Collections - [The successful Italian U-Boat "Barbarigo", which destroyed a 32,000-ton Maryland-class U.S. battleship off the American coast, returned to base after her victorious cruise.]
![The Italian submarine Guglielmo Marconi in Naples in August 1940, shortly before being sent to the Atlantic. To the left, a Marcello-class submarine; in the background, a Zara-class heavy cruiser. [1600 x The Italian submarine Guglielmo Marconi in Naples in August 1940, shortly before being sent to the Atlantic. To the left, a Marcello-class submarine; in the background, a Zara-class heavy cruiser. [1600 x](https://i.redd.it/bxam66yyg9221.jpg)
The Italian submarine Guglielmo Marconi in Naples in August 1940, shortly before being sent to the Atlantic. To the left, a Marcello-class submarine; in the background, a Zara-class heavy cruiser. [1600 x
![A British U class boat. They were the scourge of the Italian Navy in WWII. | Royal navy submarine, Royal navy ships, Navy ships A British U class boat. They were the scourge of the Italian Navy in WWII. | Royal navy submarine, Royal navy ships, Navy ships](https://i.pinimg.com/736x/14/c4/49/14c449a7ddce6019d62fe7131a958898--navy-ships-royal-navy.jpg)
A British U class boat. They were the scourge of the Italian Navy in WWII. | Royal navy submarine, Royal navy ships, Navy ships
In WW2, during the Battle of the Atlantic, did any Italian submarines take part alongside the German U-Boats, or was the Italian Submarine effort confined entirely to the Mediterranean? - Quora
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