Rough Riders
The most famous of all the units fighting in Cuba, the "Rough Riders" was the name given to the First U.S. Volunteer Cavalry under the leadership of Theodore Roosevelt. Roosevelt resigned his position as Assistant Secretary of the Navy in May 1898 to join the volunteer cavalry.
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Business supremacy in the area of commerce
Farm animals gave the disease to European farmers, and they gave it to the Native Americans.
They came in to contact with a African slave trader in the coast of the new world