The most important issue that remained unresolved was the fate of the North Aegean islands (Lesbos, Chios, Lemnos, Gökçeada (Imbros) and Bozcaada (Tenedos)), which were annexed by Greece during the war. The issue was left to the arbitration of the Great Powers, who in February 1914 awarded them, except for (Gökçeada) and Bozcaada, to Greece. As the Ottoman Empire refused to give up its claims, a crisis erupted which led to a naval race during 1913–1914 and preparations were made for a renewed conflict on both sides.