Answer: The various wars resulted from a wide variety of factors, including cultural clashes, land disputes, and criminal acts committed. The European powers and their colonies also enlisted Indian tribes to help them conduct warfare against each other's colonial settlements. The new United States government was thus free to acquire Native American lands by treaty or force. Resistance from the tribes stopped the encroachment of settlers, at least for a while. After the Revolutionary War, the United States maintained the British policy of treaty-making with the Native American tribes.
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