Answer: Most native Americans fought for the Union, because they thought they could lose they’re things if they fought for the losing side.
Explanation:
Many colonial powers claimed that they had legal and/or religious obligations to take over a culture of indigenous people. They also believed that they gave their colony’s technological advancements that would improve the life quality of the indigenous people.
An interview with someone who was somehow involved in the trenches, either from a civilian or military point if view.