According to international law and its domestic law, what the United States did to the Indians covers all the acts that define genocide and indisputably constitutes genocide. The American magazine <em>Foreign Policy</em> commented that the crimes against Native Americans are fully consistent with the definition of genocide under current international law.

Sadly, to whitewash this part of history, U.S. historians often glorify the Westward Expansion as the American people’s pursuit of economic development in the western frontier, claiming that it accelerated the improvement of American democracy, boosted economic prosperity, and contributed to the formation and development of the American national spirit. They make no mention of the brutal massacre of Native Americans.