How did the October Revolution of 1917 transform the political structure of the Russian Empire after World War I? 1. The Allies intervened and returned territory to Poland.

2. The Bolsheviks seized control and established the Soviet Union.

3. The Warsaw Pact created unity and strengthened Eastern Europe.

4. The Mensheviks deposed the czar and formed the Provisional Government.

2. The Bolsheviks seized control and established the Soviet Union.

Explanation:

The October Revolution of 1917 transformed the political structure of the Russian Empire after World War I by the Bolsheviks seizing control and establishing the Soviet Union.

This revolution was responsible for the rise of communist rule all over the world and established the Soviet Union as a world power which immediately went head to head with the United States in World War I.

.elections are held to determine who serves in congress.

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