Who was the leader of the Bolsheviks during the Russian Revolution of 1917? Vladimir Lenin Winston Churchill Karl Marx Adolf Hitler None Which event in 1917 led to Russia withdrawing from World War I? Treaty of Brest-Litovsk Battle of Verdun Attack on Pearl Harbor Sinking of the Lusitania None Which battle on the Eastern Front during World War I was a major defeat for Russia? Battle of Tannenberg Battle of Verdun Battle of the Somme Battle of the Marne None What was the primary cause of discontent among Russian soldiers during World War I? Food shortages Harsh winter conditions Lack of adequate medical care Ineffective military leadership None Which group led the opposition to the Bolsheviks during the Russian Civil War? Mensheviks White Army Red Guards Black Hundreds None Time's up