What term is used to refer to African-American soldiers who fought on the Great Plains in the 1870s?

The term "Buffalo Soldiers" specifically refers to the regiments of African-American soldiers who served on the Great Plains during the post-Civil War period, particularly in the 1870s. This name was given to them by Native Americans, who observed their hair's resemblance to the fur of buffalo. The Buffalo Soldiers played a crucial role in various military campaigns and in the protection of settlers and infrastructure during the westward expansion of the United States. They were instrumental in maintaining peace on the frontier and contributed significantly to the U.S. Army's efforts in that era. This historical context highlights the unique contributions and challenges faced by these soldiers, distinguishing them from other groups like the Black Panthers, Freedom Fighters, or Union Troops, which refer to different movements, eras, or groups within American history.