It is called The Fetterman Massacre or Battle of the Hundred Slain. The battle ended with Indian victory, all American soldiers were slain and US withdrew from the Red Cloud's War.
The event referred to is the Fetterman Massacre, where Sioux Chief Red Cloud ambushed Union soldiers on December 21, 1866, in Wyoming. This battle resulted in the defeat of U.S. forces, showcasing Native American resistance to westward expansion. The incident led to significant changes in U.S. military strategy and relations with Native American tribes.
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