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 (INU); GUGB political police unit represented by Secret Political Department (SPO) became Secret Political Directorate (SPU), and so on. The former GUGB 4th Department (OO) was split into three sections. One section, which handled military counter-intelligence in NKVD troops (former 11th Section of GUGB 4th Department OO) become 3rd NKVD Department or OKR (Otdel KontrRazvedki), the chief of OKR NKVD was Aleksander Belyanov.<br> After the German invasion of the Soviet Union (June 1941),the NKGB USSR was abolished and on July 20, 1941 the units that formed NKGB becomes part of NKVD USSR. The military CI was also upgraded from department