Who was the leader of the Sioux tribe during the conflict in 1876?

The leader of the Sioux tribe during the conflict in 1876 was Sitting Bull. He played a pivotal role in the resistance against U.S. government policies and was instrumental in the lead-up to the Battle of the Little Bighorn, where a coalition of Sioux and Cheyenne warriors, under his guidance, achieved a significant victory against General George Custer's forces.

Sitting Bull was not only a military leader but also a spiritual figure for the Sioux. His vision and leadership inspired his people during a time of extreme pressure from U.S. expansion into Indian territories. While Crazy Horse, who is often associated with the conflict, was a prominent military leader during the battle itself, it was Sitting Bull's overall leadership and strategic vision that were critical during this period.

The other figures mentioned, such as Red Cloud and Geronimo, were involved in other conflicts and narratives within Native American history but were not leading the Sioux during the events of 1876. Red Cloud was known for leading the Red Cloud's War earlier in the 1860s, while Geronimo was prominent in the Apache conflicts in the southwestern United States, which occurred later.