History of Soviet Russia and the Soviet Union (1917–27) the position of People's Commissar of War before the end of the year. In 1925, Trotsky was denounced for his essay "Lessons of October," which criticized Zinoviev and Kamenev for initially opposing Lenin's plans for an insurrection in 1917. Trotsky was also denounced for his theory of permanent revolution which contradicted Stalin's position that socialism could be built in one country, Russia, without a worldwide revolution. As the prospects for a revolution in Europe, particularly Germany, became increasingly dim through the 1920s, Trotsky's theoretical position began to look increasingly pessimistic as far as the success of Russian socialism was concerned.
Eastern Bloc politics Because the party later had to admit the mistakes of much that occurred during the purges after Stalin's death, the purges also destroyed the moral base upon which the party operated. In doing so, the party abrogated its prior Leninist claim to moral infallibility for the working class. Eastern Bloc secret police organizations were formed on Vladimir Lenin's theory and Joseph Stalin's practical application of "the defense of the revolution." One of the first acts of Lenin after the October 1917 Revolution was the establishment of a secret police, the Cheka. Such organizations in the Eastern Bloc became the "shield