On 29 June 1913, the Second Balkan War broke out and the Mediterranean Division was retained in the area. On 23 October 1913, "Konteradmiral" (Rear Admiral) Wilhelm Souchon assumed command of the squadron. "Goeben" and "Breslau" continued their activities in the Mediterranean, and visited some 80 ports before the outbreak of World War I. The navy made plans to replace "Goeben" with her sister "Moltke", but the assassination of Archduke Franz Ferdinand of Austria in Sarajevo, Bosnia, on 28 June 1914 and the subsequent rise in tensions between the Great Powers made this impossible. After the assassination, Souchon assessed that war was imminent between the Central Powers and the Triple Entente, and ordered his ships to make for Pola for repairs. Engineers came from Germany to work on the ship. "Goeben" had 4,460 boiler tubes replaced, among other repairs. Upon completion, the ships departed for Messina.