The Regia Marina or Royal Italian Navy (; ) was the navy of the Kingdom of Italy (Regno d'Italia) from 1861 to 1946. In 1946, with the birth of the Italian Republic (Repubblica Italiana), the Regia Marina changed its name to Marina Militare ("Military Navy"). Origins The Regia Marina was established on 17 March 1861 following the proclamation of the formation of the Kingdom of Italy. Just as the Kingdom was a unification of various states in the Italian peninsula, so the Regia Marina was formed from the navies of those states, though the main constituents were the navies of the former kingdoms of Sardinia and Naples. The new Navy inherited a substantial number of ships, both sail- and steam-powered, and the long naval traditions of its constituents, especially those of Sardinia and Naples, but also suffered from some major handicaps. Firstly, it suffered from a lack of uniformity and cohesion; the Regia Marina was a heterogeneous mix of equipment, standards and practice, and even saw hostility between the officers from the various former navies. These problems were compounded by the continuation of separate officer schools at Genoa and Naples, and were not fully addressed until the opening of a unified Naval Academy at Livorno in 1881. Secondly, unification occurred during a period of rapid advances in naval technology and tactics, as typified by the launch of by France in 1858, and later by the appearance of, and battle between, and in 1862. These innovations quickly made older warships obsolete. Italy did not possess the shipyards or infrastructure to build the modern ships required, but the then Minister for the Navy, Admiral Carlo di Persano, launched a substantial programme to purchase warships from foreign yards. Seven Weeks War The new navy's baptism of fire came on 20 July 1866 at the Battle of Lissa during the Third Italian War of Independence (parallel to the Seven Weeks War). The battle was fought against the Austrian Empire and occurred near the island of Vis in the Adriatic sea. This was one of the few fleet actions of the nineteenth century, and as a major sea battle that involved ramming, it is often considered to have had a profound effect on subsequent warship design and tactics. The Italian fleet, commanded by Admiral Persano, mustered 12 ironclad and 17 wooden-hulled ships, though only one, , was of the most modern turret ship design. Despite