Questions: In the War of 1812, the United States fought Great Britain.

The answer is Great Britain.

Explanation:

• Great Britain: Correct. The War of 1812 was fought between the United States and Great Britain. The conflict was primarily over issues such as trade restrictions, impressment of American sailors, and British support of Native American tribes against American expansion.

• Spain: Incorrect. Spain was not a primary combatant in the War of 1812. The conflict was mainly between the U.S. and Great Britain.

• Russia: Incorrect. Russia was not involved in the War of 1812. The war was focused on North America and the Atlantic.

• Germany: Incorrect. Germany did not exist as a unified nation during the War of 1812. The region was made up of various independent states and principalities.