D . Article I Section 8 in the Constitution gives them the power to do so
The Indian reservation system established tracts of land called reservations for Native Americans to live on as white settlers took over their land.
Hi there! Hopefully this helps!
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The main factors that created rising tensions between European powers were;
- The enlargement of armies through militarism.
- The spread of nationalism through uprisings.
- The formulation of alliances through agreements.
- The spread of imperialism through conquests.
C i believe i might be wrong
it is important because it helps them to get things done faster