Droughts and poor land management.
The native americans thought the french was less a threat and the french also treated the native americans with more respect.
Answer:
Polk wanted more people to have access to the untold wealth in gold mining.
Explanation:
It changed because the united states didn't trust Soviet union after the second war tension was growing alot stronger between the united states and the Soviet and this ended up to lead to war which ended decades later
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