At the start of the Italo-Turkish War in September 1911, "Caprera" was stationed in Italy, alternating between the ports of La Spezia and Naples, along with her sister ships "Urania" and "Iride". The threat of an Ottoman attack from the Arabian Peninsula across the Red Sea to Italian Eritrea led the Italian High Command to reinforce the Red Sea Squadron. "Caprera" and several destroyers were sent to strengthen the Italian defenses. The protected cruiser and two destroyers annihilated a force of seven Ottoman gunboats in the Battle of Kunfuda Bay on 7 January 1912, wiping out the core of Ottoman naval forces in the area. "Caprera" and the rest of the Italian ships then commenced a bombardment campaign against the Turkish ports in the Red Sea before declaring a blockade of the city of Al Hudaydah on 26 January. On 27 July and 12 August, "Caprera", her sister ship "Aretusa", and the protected cruiser "Piemonte" conducted two bombardments of Al Hudaydah. During the second attack, they destroyed an Ottoman ammunition dump. On 14 October, the Ottoman government agreed to sign a peace treaty, ending the war. "Caprera" did not remain in service long after the end of the war. She was sold for scrap in May 1913 and thereafter broken up.