At the end of World War I (1914–1918), attention of the Allied Powers (Entente Powers) focused on the partition of the territory of the Ottoman Empire. As part of the Treaty of London (1915), by which Italy left the Triple Alliance (with Germany and Austria-Hungary) and joined France, Great Britain and Russia in the Triple Entente, Italy was promised the Dodecanese and, if the partition of the Ottoman Empire were to occur, land in Anatolia including Antalya and surrounding provinces presumably including Smyrna. But in later 1915, as an inducement to enter the war, British Foreign Secretary Edward Grey in private discussion with Eleftherios Venizelos, the Greek Prime Minister at the time, promised large parts of the Anatolian coast to Greece, including Smyrna. Venizelos resigned from his position shortly after this communication, but when he had formally returned to power in June 1917, Greece entered the war on the side of the Entente.