The Treaty of Lausanne (, ) is a peace treaty negotiated during the Lausanne Conference of 1922–23 and signed in the Palais de Rumine, Lausanne, Switzerland, on 24 July 1923. The treaty officially settled the conflict that had originally existed between the Ottoman Empire and the Allied French Republic, British Empire, Kingdom of Italy, Empire of Japan, Kingdom of Greece, Kingdom of Serbia, and the Kingdom of Romania since the onset of World War I. The original text of the treaty is in French. It was the result of a second attempt at peace after the failed and unratified Treaty of Sèvres, which aimed to divide Ottoman territories. The earlier treaty had been signed in 1920, but later rejected by the Turkish National Movement who fought against its terms. As a result of the Greco-Turkish War, Izmir was retrieved and the Armistice of Mudanya was signed in October 1922. It provided for the Greek-Turkish population exchange and allowed unrestricted civilian, non-military, passage through the Turkish Straits.
