The document summarizes conflicts between settlers moving westward into American Indian lands in Texas and the response from the Texas Rangers and federal government. As more settlers moved into Indian territory, they asked the government for help dealing with attacks. The Texas Rangers were effective at battling the Comanche and Kiowa using horses and Colt six-shooters. The federal government established forts along the frontier to protect settlers but the forts were too far apart and had too few troops as settlers continued moving past them deeper into frontier lands. Many Plains Indians were eventually moved to reservations in Indian Territory while some Texas tribes like the Alabama-Coushatta had land reserved for them in the state.

1. Chapter 16: Western Expansion and Conflict Section 3: The Texas Rangers & American Indians