Answer:
The USSR needed to protect its western border from furtue attacks.
The refusal of American Indians from their land cause a forced removal and led to the American Indians to use violence against general custard.
Because it was the only good thing they accomplished the rest just wasn't good enough or failed
Answer:
Imperialism was a cause because building an empire needs manpower such as an army and a navy to conquer and keep the land that they colonised.
Explanation:
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