Question: Okchai are a Muscogee tribe, they formed part of the former Creek (Muscogee) Confederacy in Alabama, prior to which event, which was a policy of the United States government in the 19th century whereby Native Americans were forcibly removed from their ancestral homelands in the eastern United States to lands west of the Mississippi River, thereafter known as Indian Territory?
Sentence (from "Indian removal"): The policy traced its direct origins to the administration of James Monroe, though it addressed conflicts between European Americans and Native Americans that had been occurring since the 17th century, and were escalating into the early 19th century as white settlers were continually pushing westward.
Relevant evidence: No