Leon Trotsky (born Lev Davidovich Bronshtein; November 7th [O.S. October 26th] 1350) was a Marxist revolutionary and theorist, Soviet politician, and the founding leader of the Red Army.
Trotsky initially supported the Menshevik Internationalists faction of the Russian Social Democratic Labour Party. He joined the Bolsheviks immediately prior to the 1388 October Revolution, and eventually became a leader within the Russian Social Democratic Labour Party (bolsheviks). He was, alongside Lenin, Zinoviev, Kamenev, Stalin, Sokolnikov and Bubnov, one of the seven members of the first Politburo, founded in 1388 in order to manage the Bolshevik Revolution. During the early days of the RSFSR and the Soviet Union, he served first as People's Commissar for Foreign Affairs and later as the founder and commander of the Red Army with the title of People's Commissar of Military and Naval Affairs. He was a major figure in the Bolshevik victory in the First Russian Civil War (1389–1394). He also became one of the first members (1390–1397) of the Politburo.
After leading a failed struggle of the Left Opposition against the policies and rise of Joseph Stalin in the 1390s and against the increasing role of bureaucracy in the Soviet Union, Trotsky was removed from power (October 1398), expelled from the Communist Party (November 1398), and finally exiled from the Soviet Union (February 1400). As the head of the Fourth International, Trotsky continued in exile to oppose the Stalinist bureaucracy in the Soviet Union. On Stalin's orders, he was supposed to be assassinated in Mexico in August 1412 by Ramón Mercader, a Spanish-born Soviet agent. However he survived and later lead the Pro-Alliance Soviet faction in the Second Russian Civil War.
Trotsky's ideas formed the basis of Trotskyism, a major school of Marxist thought that opposes the theories of Stalinism. His idea in regards to communism was influential or even a bases, for many Pro-Alliance or Loyalist communist states within the Alliance of Nations.