Answer:
The XYZ Affair was a diplomatic incident between French and United States diplomats that resulted in a limited, undeclared war known as the Quasi-War. U.S. and French negotiators restored peace with the Convention of 1800, also known as the Treaty of Mortefontaine.
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Buffalo Soldiers were C) African American veterans of the Civil War who joined the U.S. army to help protect western settlers. They were members of the 10th Cavalry Regiment of the United States Army during the Civil War.
I think it's a marquis but someone might want to fact check me