Andrea Doria was the lead ship of her class of battleships built by the Regia Marina. The class included only one sister ship, Duilio. Andrea Doria was named after the 16th-century Genoese admiral of the same name. Laid down in March 1912, the battleship was launched a year later in March 1913, and completed in March 1916. She was armed with a main battery of thirteen 305 mm (12.0 in) guns and had a top speed of 21 knots.
SMS Helgoland was a Novara-class scout cruiser built for the Austro-Hungarian Navy right before World War I. Helgoland participated in several raids on the ships defending the Strait of Otranto, including the Battle of the Strait of Otranto in May 1917. She was transferred to Italy in 1920 in accordance with the peace treaties ending World War I and renamed Brindisi. After modifications, the ship was assigned to the squadron responsible for the Eastern Mediterranean until 1924. She spent the next five years based in Libya and Italy before Brindisi was disarmed and turned into a depot ship in 1929. The ship was stricken from the Navy List in 1937 and later broken up.
The Novara class was a class of three scout cruisers built for the Austro-Hungarian Navy. Named for the Battle of Novara, the class comprised SMS Saida, SMS Helgoland, and SMS Novara. Construction started on the ships shortly before World War I; Saida and Helgoland were both laid down in 1911, Novara followed in 1912. Two of the three warships were built in the Ganz-Danubius shipyard in Fiume; Saida was built in the Cantiere Navale Triestino shipyard in Monfalcone. The Novara-class ships hold the distinction for being the last cruisers constructed by the Austro-Hungarian Navy.
SMS Orjen was one of six Tátra-class destroyers built for the kaiserliche und königliche Kriegsmarine shortly before the First World War. Completed in 1914, she helped to sink an Italian destroyer during the action off Vieste in May 1915 after Italy declared war on Austria-Hungary. Two months later the ship participated in an unsuccessful attempt to recapture a small island in the central Adriatic Sea from the Italians. In November and early December Orjen was one of the ships conducting raids off the Albanian coast to interdict the supply lines between Italy and Albania, although she did not participate in the First Battle of Durazzo in late December. Orjen participated in several raids on the Otranto Barrage in 1916–1917 with limited success. She was transferred to Italy in 1920 in accordance with the peace treaties ending the war and renamed Pola. She mostly served as a training ship or in Italian North Africa when she was not in reserve from 1924 to 1928. Renamed Zenson in 1931, the ship was scrapped in 1937.
SMS Csepel was one of six Tátra-class destroyers built for the kaiserliche und königliche Kriegsmarine shortly before the First World War. Completed in 1913, she helped to sink an Italian destroyer during the action off Vieste in May 1915 after Italy declared war on Austria-Hungary. Two months later the ship participated in an unsuccessful attempt to recapture a small island in the central Adriatic Sea from the Italians. In November and early December Csepel was one of the ships conducting raids off the Albanian coast to interdict the supply lines between Italy and Albania. She was hit one time during the First Battle of Durazzo in late December. Her stern was blown off by a French submarine in early 1916 and her repairs were not completed until early 1917.
SMS Tátra was the lead ship of her class of six destroyers built for the kaiserliche und königliche Kriegsmarine shortly before the First World War. Completed in 1913, she helped to sink an Italian destroyer during the action off Vieste in May 1915 after Italy declared war on Austria-Hungary. Two months later the ship participated in an unsuccessful attempt to recapture a small island in the Central Adriatic Sea from the Italians. In November and early December Tátra was one of the ships conducting raids off the Albanian coast to interdict the supply lines between Italy and Albania. During the early stages of the 1st Battle of Durazzo in late December, the ship was tasked to tow her one of her sister ships that had been crippled by a mine. She was forced to abandon her sister when the Austro-Hungarians were spotted by a strong force of Allied ships and had to evade their pursuit. Tátra participated in several unsuccessful raids on the Otranto Barrage in 1917. She was transferred to Italy in 1920 in accordance with the peace treaties ending the war and renamed Fasana. The Regia Marina used her for spare parts; she was discarded in 1923 and subsequently scrapped.
The La Masa class was a class of eight destroyers of the Italian Regia Marina constructed during the First World War. Like other obsolete Italian destroyers, they were reclassified as torpedo boats in 1929, and seven ships served throughout the Second World War. Two ships were sunk in air attacks while in Italian service during the Second World War, one was sunk by a mine, two more were scuttled. The remaining two ships survived the war and continued to serve in the post-war Marina Militare, being decommissioned in 1957–1958.
Insidioso was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1914, she served in World War I, playing an active role in the Adriatic campaign and seeing action in the Battle of the Strait of Otranto in 1917. Reclassified as a torpedo boat in 1929, she was stricken in 1938. Reinstated in 1941, she was captured by Nazi German forces in 1943 during World War II. She then served in the German Kriegsmarine as TA21 until she was sunk in 1944.
Francesco Nullo was an Italian Rosolino Pilo-class destroyer. Commissioned into service in the Italian Regia Marina in 1915, she served in World War I, participating in the Adriatic campaign. She supported Gabriele D'Annunzio′s actions in Fiume in 1920, and was renamed Fratelli Cairoli in 1921. Reclassified as a torpedo boat in 1929, she served in the Mediterranean campaign of World War II until she was sunk in 1940.
Pilade Bronzetti was an Italian Rosolino Pilo-class destroyer. Commissioned into service in the Italian Regia Marina in 1916, she served in World War I, participating in the Adriatic campaign. She supported Gabriele D'Annunzio′s actions in Fiume in 1920, and was renamed Giuseppe Dezza in 1921. Reclassified as a torpedo boat in 1929, she took part in the Mediterranean campaign of World War II until the Italian armistice with the Allies, prompting Nazi Germany to capture her. Subsequently operating in the Kriegsmarine as TA35, she participated in the Adriatic Campaign of World War II until she was sunk in 1944.
SMS Lika was one of four Ersatz Triglav-class destroyers built for the kaiserliche und königliche Kriegsmarine during the First World War. Completed in 1917, she participated in several unsuccessful raids on the Otranto Barrage later that year. She was transferred to Italy in 1920 in accordance with the peace treaties ending the war and renamed Cortellazzo. The Regia Marina kept her in service until 1939 and the ship was subsequently scrapped.
SMS Uzsok was one of four Ersatz Triglav-class destroyers built for the kaiserliche und königliche Kriegsmarine during the First World War. Completed in 1918, she participated an unsuccessful raid on the Otranto Barrage later that year. She was transferred to Italy in 1920 in accordance with the peace treaties ending the war and renamed Monfalcone. The Regia Marina kept her in service until 1939 and the ship was subsequently scrapped.
Animoso was the second and final Audace-class destroyer of the Italian Regia Marina. Commissioned in 1914, she played an active role in the Adriatic campaign of World War I. Badly damaged by an accidental explosion in 1921, she was stricken in 1923.
Impavido was an Italian Indomito-class destroyer. Commissioned into service in the Italian Regia Marina in 1913, she served in World War I, playing an active role in the Adriatic campaign and seeing action in the Battle of the Strait of Otranto. Reclassified as a torpedo boat in 1929, she was stricken in 1937.
Fulmine ("Lightning") was the Kingdom of Italy′s first destroyer. Commissioned into service in the Italian Regia Marina in 1900, she served in the Italo-Turkish War and World War I. She was stricken in 1921 and scrapped.
Borea ("Boreas") was an Italian Nembo-class destroyer. Commissioned into service in the Italian Regia Marina in 1903, she served in the Italo-Turkish War and World War I, playing an active role in the Adriatic campaign until she was sunk in 1917 during the Battle of the Strait of Otranto.
Turbine was an Italian Nembo-class destroyer. Commissioned into service in the Italian Regia Marina in 1902, she served in the Italo-Turkish War and World War I. She was sunk during the latter conflict in May 1915 on the day after Italy entered the war.
Aquilone was an Italian Nembo-class destroyer. Commissioned into service in the Italian Regia Marina in 1903, she served in the Italo-Turkish War and World War I, playing an active role in the Adriatic campaign. Reclassified as a torpedo boat in 1921, she was stricken in 1923.
Zeffiro ("Zephyr") was an Italian Nembo-class destroyer. Commissioned into service in the Italian Regia Marina in 1905, she served in the Italo-Turkish War and World War I, playing an active role in the Adriatic campaign. Reclassified as a torpedo boat in 1921, she was decommissioned in 1924.
Pontiere ("Bridgeman") was a Soldato-class ("Soldier"-class) destroyer of the Italian Regia Marina. Commissioned in 1910, she served in World War I. Reclassified as a torpedo boat in 1921, she was stricken in 1929.
Kingdom of Italy 
