 The sisters came together in 1912 and they bombarded the fortifications defending the entrance to the Dardanelles in July.After the end of the war, "Amalfi" escorted the Italian king and queen on the royal yacht to Germany and Sweden during a 1913 visit.After "Amalfi" was sunk by the submarine (actually the Imperial German submarine SM "UB-14" flying the Austro-Hungarian flag) on 7 July 1915, "Pisa"s activities were limited by the threat of submarine attack, although the ship did participate in the bombardment of Durazzo, Albania in late 1918.