All of these are the causes that led to the Russian Revolution. The Russian Revolution consists of two revolutions actually and those are the February Revolution and the October Revolution. The Russian Revolution led to the end of Tsarists autocracy and led to the rise of the Soviet Union.
They removed existing rulers from the conquered lands to ensure they had direct control of their enemies' trade routes. They forced all the people they conquered to trade directly with them, increasing their wealth from the sale of additional goods. They took all conquered people as prisoners and forced them to work as slaves on public works projects. The tribute demanded from conquered peoples provided warriors for defense, as well as food and resources for their own people.
C. Mao Zedong was a communist leader in China, in 1937.
