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.
NKVD wealthier peasantry, as well as the mass deportations of entire nationalities to uninhabited regions of the country. They oversaw the protection of Soviet borders and espionage (which included political assassinations), and enforced Soviet policy in communist movements and puppet governments in other countries, most notably the repression and massacres in Poland. In March 1946 all People's Commissariats were renamed to Ministries, and the NKVD became the Ministry of Internal Affairs (MVD). After the Russian February Revolution of 1917, the Provisional Government dissolved the Tsarist police and set up the "People's Militsiya". The subsequent Russian October Revolution of 1917 saw a