In the summer of 1936, Trotsky completed the book What is the USSR and where is it going?, published in many countries under the title The Revolution Betrayed. This very title indicates the main theme of the book, which was the result of many years of reflection on the fate of the victorious people's revolution, which withstood the onslaught of external and internal enemies, but betrayed from within by the forces that formally acted on its behalf.In "The Revolution Betrayed" the most difficult theoretical problems are presented in a clear and concise manner, which makes it accessible to the understanding of any educated person. Nevertheless, this book, as I. Deutscher rightly pointed out, is Trotsky's most difficult work. Its perception requires dialectical thinking, which rejects flat formal logical constructions and the use of categorical complete definitions to characterize dynamic and incomplete historical processes.

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