The were both places that immigrants could come into the country
American settlers, Native Americans, and Mexican Americans faced some conflicts in the Mexico cession. They all faced legal, economic, and social discrimination problems.
In short, conflicts over land and water.
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Answer:
They could now maintain a large army at the cost of the Indian states. This enabled them to fight wars far away from their own territories, since any war would occur in the territories either of the British ally or of the British enemy.
The answer to this question could be jewelry although I’m not 100%