How did Europe’s system of alliances contribute to the outbreak of WWI, and how did the conflict become a global war? How did WWI affect the belligerents’ governmental institutions, economic affairs, and social life? What factors led to the Russian Revolution of 1917, and what was its outcome?

This short answer requires at least 800 words (one essay question with multiple parts). Your answer should provide analysis supported by detailed historical facts.
-How did Europe’s system of alliances contribute to the outbreak of WWI, and how did the conflict become a global war? How did WWI affect the belligerents’ governmental institutions, economic affairs, and social life? What factors led to the Russian Revolution of 1917, and what was its outcome?
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