Italian submarine Dagabur was an built for the Royal Italian Navy (Regia Marina) during the 1930s. It was named after a town of Dagabur in eastern Ethiopia. The submarine played a minor role in the Spanish Civil War of 1936–1939 supporting the Spanish Nationalists. On August 11, 1942, during World War II, Dagabur was rammed by destroyer and sank with all hands. Design and description The Adua-class submarines were essentially repeats of the preceding . They displaced surfaced and submerged. The submarines were long, had a beam of and a draft of . For surface running, the boats were powered by two diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a electric motor. They could reach on the surface and underwater. On the surface, the Adua class had a range of at , submerged, they had a range of at . The boats were armed with six internal torpedo tubes, four in the bow and two in the stern. One reload torpedo was carried for each tube, for a total of twelve. They were also armed with one deck gun for combat on the surface. The light anti-aircraft armament consisted of one or two pairs of machine guns. Construction and career Dagabur was built at the Tosi shipyard in Taranto. She was laid down on 16 April 1936, launched on 22 November of the same year, and commissioned on 9 April 1937. On April 25, 1937, she was assigned to 43rd Submarine Squadron in Taranto. During 1937 she carried out training and exercises in the Dodecanese and Libya. Between August and September of 1937 she performed three missions during the Spanish Civil War. During the first one, on August 13, 1937 Dagabur unsuccessfully attacked a ship during a patrol in the Aegean Sea. In 1938 she was reassigned to Tobruk, and in 1940 she returned to Italy, and was assigned to 46th Squadron (IV Submarine Group) based first at Taranto and then at Augusta. After Italy's entrance into World War II, Dagabur under command of captain Domenico Romano, was engaged in various defensive missions, mainly anti-submarine, in the Gulf of Taranto and off the coasts of Tunisia and Libya. She did not encounter any enemy units during these missions. On January 1, 1941 Dagabur commenced her patrol off Cyrenaica coast lasting until January 12, but it proved to be uneventful. On February 19, 1941,