Answer :
Answer: I believe the answer is gonna be A. Encourage conflicts between tribes.
Explanation:
Some Indian tribes, like the Cherokee took the confederate's side later in the war, where as the Creek Indians fought for the Union.
Hope this helped. Sorry if it didn't.
Answer:
The answer is A.Tribes cooperated with each other more because of the war.
Explanation:
I just took the test with 10 min to spare