Italy, Germany, japan, and russia in the beginning but became allies later ing the war.
Britan
Athanasius :)
Spain was the country that fought against the Rough Riders in the Battle of San Juan Hill.
Not a country - the city of Carthage.
they fought against Germany
China
France
Russia
Algeria
This country was South Korea.
Before America became a country, we fought in the French and Indian War. But, the first war we fought as a country was the American Revolutionary War.