European Imperialism was a period of colonial expansion. It is the most important cause of WW1 because it built tension between the countries. It caused Tension between Nations and Countries. Was a cause of WW1 by separating from where they stand to form another empire away from their old empire, to avoid dictatorship.
Answer:
british trader started exchange opium for China
179,000 African American men served in the civil war
Tell me whers is the "following statements"
