The First Great War was remarkable for the number of groups of people who started it fighting on one side and finished it fighting on the other. In the east the best known group was the Arabs, who started the war in the Turkish army and finished it taking part in the liberation of their countries from the Turks. A much less well-known group was the Turkish-speaking Moslems, mainly Tatars, who started the war in the Russian army and finished it in the Turkish army.