 The Soviet Union played a major role in supplying weapons to and financing Mustafa Kemal Atatürk's faction during the Turkish War of Independence but Turkey's followed a course of relative international isolation during the period of Atatürk's Reforms in 1920s and 1930s.International conferences gave Turkey full control of the strategic straits linking the Black Sea and the Mediterranean, though the Treaty of Lausanne in 1923 and the Montreux Convention of 1936.Atatürk's successor after his death on November 10, 1938 was İsmet İnönü.