In late July 1867, the Lakota and Cheyenne took two different paths in attacks. A force composed primarily of Cheyenne and Arapaho gathered for an attack at Fort C. F. Smith on the Bighorn River in Montana. Another, mostly Lakota, decided to attack Fort Phil Kearny, southeast. Crow people lived near Fort Smith and provided intelligence to the soldiers at the fort, warning of upcoming attacks. On July 23, the fort was reinforced by two companies of infantry under Lt. Col. Luther P. Bradley, bringing the complement of the fort up to 350 soldiers.