Answer:
The Rough Riders were a regiment of soldiers who fought under Theodore Roosevelt in the Spanish-American War.
Step-by-step explanation:
Rough Riders was the name of the First United States Volunteer Cavalry Regiment during the Spanish-American War.
It was created by the future president Theodore Roosevelt being one of the three regiments of this class to go to war against Spanish Empire and the unique one of the three to take action in 1898.