"As to the Indians, the guiding principle was, promise them anything just so long as they get out of the way"

In this quote, historian Stephen Ambrose is referring to the treatment of Native Americans by the United States government. He suggests that the federal government's primary objective was to eliminate Native Americans from their land, and they were willing to make any guarantees or contracts in order to attain this goal. This highlights the disregard for the rights and wellness of Native Americans, as they were viewed as obstacles to be removed instead of equal citizens. The phrase "assure them anything" suggests a lack of sincerity and a determination to manipulate and trick in order to achieve their desired outcome. This quote clarifies the unpleasant history of the mistreatment of Native Americans by the US federal government.