Final answer:
European colonization was a threat to Native American ways of life. Indian tribes often allied with European powers, such as the British, to protect their interests and lands. Alliances were a strategic part of power dynamics in colonial North America.
Step-by-step explanation:
European colonization was indeed seen as a threat to the way of life of Native American tribes. This is true as the arrival of Europeans resulted in a significant alteration of Native American societies. Large-scale loss of land, introduced diseases to which indigenous people had no immunity, and cultural disruption were some of the major impacts faced by Native people due to colonization.
Most Indian tribes and nations supported the British during the American Revolutionary War because they worried that an American victory might lead to even more expansion into their territories. This fear was not unfounded, as the early United States government continued policies of westward expansion, further displacing many Native American tribes.
It is also true that Indian alliances were crucial for European powers establishing control in the southeast of what is now the United States. These alliances were strategic for both Native tribes and Europeans: tribes sought to maintain their own power and protect their lands, while Europeans sought allies to strengthen their positions against other colonial powers and Native groups.