The Black Hills Conflict refers to a series of disputes and confrontations between the United States government and Native American tribes, particularly the Lakota Sioux, over land ownership and the sacred nature of the Black Hills region. This conflict emerged after gold was discovered in the area in the mid-19th century, leading to an influx of settlers and miners, despite the Black Hills being guaranteed to the Lakota under the Treaty of Fort Laramie in 1868.