The ships used their 6-inch guns to attack the fort to preserve their stock of 13.5-inch shells. By the morning of the 4th, the ships' gunfire had silenced the guns in the fort, allowing landing forces to go ashore and capture the city. These included a contingent led by "Sicilia"s captain. The ships of the Training Division thereafter alternated between Tripoli and Khoms to support the Italian garrisons in the two cities; this included repulsing a major Ottoman attack on Tripoli over 23–26 October, where "Sicilia" and "Sardegna" supported the Italian left flank against concerted Ottoman assaults. In November, "Sicilia", "Re Umberto", the torpedo cruiser "Partenope", the destroyer , and the torpedo boat bombarded the oasis at Taguira, though no Turkish forces were present. The Italians then sent a garrison to protect the oasis. By December, the three ships were stationed in Tripoli, where they were replaced by the old ironclads and . "Sicilia" and her sisters arrived back in La Spezia, where they had their ammunition and supplies replenished. In May 1912, the Training Division patrolled the coast, but saw no action. The following month, "Sicilia" and her sisters, along with six torpedo boats, escorted a convoy carrying an infantry brigade to Buscheifa, one of the last ports in Libya still under Ottoman control. The Italian force arrived off the town on 14 June and made a landing; after taking the city, the Italian forces then moved on to Misrata. "Sicilia" and the rest of the ships continued supporting the advance until the Italians had secured the city on 20 July. The Training Division then returned to Italy, where they joined the escort for another convoy on 3 August, this time to Zuara, the last port in Ottoman hands. The ships covered the landing two miles east of Zuara two days later, which was joined by supporting attacks from the west and south. With the capture of the city, Italy now controlled the entire Libyan coast. On 14 October the Ottomans agreed to sign a peace treaty to end the war. "Sicilia" became a depot ship for the new dreadnought battleship , which was then nearing completion at Taranto. "Sicilia" was stricken on 9 July 1914 and slated to be scrapped, but the "Regia Marina" decided to retain the ship after World War I broke out at the end of the month.