I’ve read that
Leninism is political theory for the establishment of the dictatorship of the proletariat, led by a revolutionary vanguard party, as the political prelude to the establishment of socialism.
so I think that the answer would be aristocratic social structure.
The Triple Alliance and Triple Entente are two opposing alliances that triggered in the start World War I. The formation of these two alliances heightened the tensions between European countries. The Triple Alliance which is composed of <span>Germany, Austria-Hungary, and Italy had a conflict with Triple Entente members - France, Russia, and Great Britain. Germany and Russia, during that time, had a great interest towards the Balkans. This is one of the reasons of the occurrence of World War I. So, the answer to the question is letter d. increasing tensions between European countries.</span>
Slaves were contributing to the Southern war effort by providing food, supplies, and manual labor.
America and russia was in the cold war hoped this helped