A. They lost large amounts of land.
Many Native American tribes fought on the side of the British, if they fought at all. By being on the losing side and the Patriots wanting access to land, left Native American tribes with less land than before the war.
Following the French-Indian War, the British provided Native American tribes with lands beyond the Appalachian Mountains. With the Patriots winning the war, the reserved Indian lands were opened for settlement pushing Native American tribes off their lands. Part of the Articles of Confederation addressed how western lands would be settled showing the intention of Americans to move into Indian lands and settle new states.