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.
Polish Operation of the NKVD of the Polish diversionist and espionage groups and POW units"," was approved on August 9, 1937 by the Party's Central Committee Politburo, and was signed by Nikolai Yezhov on August 11, 1937. It was distributed to the local subdivisions of the NKVD simultaneously with Yezhov's thirty-page "secret letter," explaining what the "Polish operation" was all about. The letter from Yezhov was titled, ""On fascist-resurrectionist, spying, diversional, defeationist, and terrorist activity of Polish intelligence in the USSR"". Stalin demanded the NKVD to "keep on digging out and cleaning out this Polish filth." The "Order" adopted the simplified so-called "album procedure" (as