What happened to the Sioux after their victory at the Battle of the Little Big Horn?

They were hunt down by the American Army.

Explanation:

The battle of the Little Bighorn fought between the Native American and American army. The victory of the Native American resulted in the defeat of the U. S. forces. The Sioux after the battle were searched as outlaws and killed, sometimes force them back onto reservations by the U. S. army.