Final answer:
The Fetterman Massacre happened on the Bozeman Trail during the Sioux Wars, led by Red Cloud and Crazy Horse.
Step-by-step explanation:
The massacre that took place on the Bozeman Trail is known as the Fetterman Massacre. It occurred on December 21, 1866, during the Sioux Wars. Captain William Fetterman and his troops were ambushed and killed by a coalition of Native American warriors led by Red Cloud and Crazy Horse.
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