How did United states army defeat native Americans?

The United States Army defeated Native Americans through a combination of military force, strategic alliances, and the use of advanced weaponry. Key factors included the U.S. government's policy of westward expansion, which often led to forced removals and broken treaties, as well as the establishment of reservations. Additionally, the Army employed tactics such as surprise attacks and overwhelming numbers, which, combined with the Native Americans' limited access to resources and technology, ultimately led to their defeat in many conflicts.