For nearly 25 years, Stalin has been the actual ruler of the Soviet Union. He is talented, energetic and persistent. Stalin's outstanding character is cruel, without any sympathy or pity. Stalin is a controversial, far-reaching, extremely complicated and contradictory historical figure. On the 50th anniversary of his death, a poll shows that Russians still have different views on the former Soviet leader.

In the movement of eliminating counter-revolutionaries in 1930s, two kinds of contradictions with different natures were confused, which led to the expansion of eliminating counter-revolutionaries, and a large number of outstanding cadres of the Party and the army were brutally persecuted. In guiding the international proletarian movement, because he absolutized the experience of a country in the Soviet Union, he neglected to combine the basic principles of Marxism with the concrete practice of revolutions in various countries, and took many inappropriate measures, which had a bad influence on the international proletarian movement. It embodies chauvinism when dealing with some countries.

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