The First Sioux War begins when United States Army soldiers kill Lakota chief Conquering Bear and in return are massacred.

The Sioux Wars were a series of conflicts between the United States and various subgroups of the Sioux people which occurred in the later half of the 19th century. The earliest conflict came in 1854 when a fight broke out at Fort Laramie in Wyoming, when Sioux warriors killed 31 American soldiers…