Revolutionary Leon Trotsky was arrested and sent to Siberia at the age of 19 for being a member of a Marxist group. He escaped and joined Lenin in London in 1902. Trotsky participated in the abortive revolution of 1905. In 1917 he returned to Russia with Lenin to lead the revolution. He became the new Communist state's first Foreign Minister, and negotiated the Russian peace treaty with Germany. He then became the Commissar of War, leading the Communist forces in the Civil War. After Lenin's death, his influence waned, and in 1927, Stalin ousted him from the Party. His continued criticism of Stalin led to his expulsion from Russia in 1929. In 1940, he was assassinated in Mexico by Soviet agents. Bibliography: Deutcher, Isaac, The Prophet Armed: Trotsky, 1879-1921. New York. Oxford University Press. 1980. Garza, Hedda. Leon Trotsky . (World Leaders: Past and Present). 1986. Mda Pubns. Segal, Ronald. Leon Trotsky . 1980. Pantheon Books Inc. Howe, Irving. Leon Trotsky . 1979. Viking Press. Warth, Robert D. Leon Trotsky. 1977. Twayne Pubs. Inc. Eastman, Max. Leon Trotsky : The Portrait of a Youth. 1970. Ams Press Inc.