Decent introduction to the topic but lacks sited sources, has a few typos, and shows a distinct bias against native Americans in its portrayal of events on the western frontier. One quote illustrating this that stuck out to me was: “to preserve peace and protect Indians from encroaching whites, the permanent Indian frontier was created and provided with a series of forts to mark and guard the frontier.” The portrayal of removing natives from their homelands as “protecting” them from white individuals is particularly troubling here.