The Kingdom of Greece didn't really have any role in the First World War, until late 1917 when Prime Minister Venizelos brought the country into the war on the side of the Allied and Associated Powers. Before that, Greece's German King Constantine had tried to keep the country neutral, even exiling Venizelos in 1915-16, and the only major event that took place was the landing of Franco-British forces in Eastern Thrace at Salonika in 1915. The Greek government had agreed to allow the Allies to use the port to send forces into Macedonia to support the Serbs and Montenegrins, who were being driven into Albania by German, Austro-Hungarian and Bulgarian forces. Unfortunately, a lack of forces and the swift collapse of the Serbs meant that Bulgarian forces occupied the territories surrounding Salonika before any real actions could be taken. The result was that Allied troops occupied Northern Epirus (southern Albania) and the Salonika perimeter through 1915, 1916 and 1917. Greece joined the Allies in 1917, as stated, and took part in the offensives into Macedonia alongside the French Army of the Orient and the Serbian-Montenegrin armies in 1918. These operations led to the defeat of Bulgaria. After this, Greek troops occupied the territories around the Asia Minor port of Smyrna/Izmir, whose Greek population had marked the territory out for annexation by the Greeks as per the Treaty of Sevres. This came to nothing however, due to Turkish resistance, as part of the Turkish War of Independence/Greco- Turkish War.