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.
Propaganda in the Soviet Union purposes was to instill in children the idea that they are involved in the World revolution, which is more important than any family ties. Pavlik Morozov, who denounced his father to the secret police NKVD, was promoted as a great positive example. Teachers in economic and social sciences were particularly responsible for inculcating "unshakable" Marxist-Leninist views. All teachers were strictly prone to follow the plan for educating children approved by top for reasons of safety, which could cause serious problems dealing with social events that, having just happened, were not included in the plan. Children of "socially alien" elements were