Why tension developed on the great plains during 1860s?

Tension developed on the Great Plains during the 1860s primarily due to conflicts between settlers, Native American tribes, and the U.S. government. The westward expansion, fueled by the Homestead Act and the pursuit of resources such as gold, led to the encroachment on Native American lands, resulting in violent clashes. Additionally, the Civil War intensified national conflicts over issues like land use and governance, further exacerbating tensions in the region. The struggle for control over land and resources created a volatile atmosphere that would impact relations for years to come.