The Battle of Little Bighorn, fought on June 25-26, 1876, was a significant conflict between the United States Army and a coalition of Native American tribes, primarily the Lakota Sioux, Northern Cheyenne, and Arapaho. The battle occurred in present-day Montana and was part of the larger Great Sioux War of 1876, which arose from tensions over land and resources. Led by Lieutenant Colonel George Armstrong Custer, the U.S. forces aimed to suppress the Native American resistance. However, Custer's troops were outnumbered and ultimately defeated, resulting in a decisive victory for the Native American forces. This battle is often remembered as a symbol of Native American resistance against U.S. expansion.