The Ottoman government was party to the Treaty of Brest-Litovsk signed between the bolshevik government of Russia and the Central Powers on March 3, 1918; the treaty became obsolete later the same year. Russian bolsheviks and the Soviet government headed by Vladimir Lenin, who emerged victorious from the Russian Civil War by 1921, viewed the Turkish revolutionary (national) movement under the leadership of Mustafa Kemal as friendly, and Lenin's government abdicated the traditional claims of the Russian Empire to the territories of Western Armenia and the Straits. The Soviet supply of gold and armaments to the Kemalists in the Turkish War of Independence in 1920–1922 was a key factor in the latter's successful power grab in an Ottoman Empire defeated by the Triple Entente and their victory in the Armenian campaign and the Greco-Turkish War (1919–22).