Discuss the role of American Indian confederations in the wars for empire from the 1690s through the 1780s

Discuss the role of American Indian confederations in the wars for empire from the 1690s through the 1780s. Were they simply pawns of the European combatants or did they have their own strategies and goals from the wars? What factors caused the various tribes and confederations to choose one European power over another as an ally?
Be sure to properly cite using Turabian/Chicago style FOOTNOTES