In World War II, which countries did the United States fight against?

The United States fought against Japan, Germany, and Italy during World War II, which is why this choice is accurate. These countries were part of the Axis powers, a military alliance that opposed the Allied powers, including the United States. Germany and Italy were central players in the European theater, responsible for significant military aggression across Europe, while Japan was pivotal in the Asia-Pacific region, initiating conflict with the U.S. through the attack on Pearl Harbor.

The other options mention various countries that were not part of the Axis alliance during World War II. For example, France was actually one of the Allies, and while Spain was neutral during the war, Mexico supported the Allies. Russia, while part of the Allies against Germany, does not fit as an adversary of the U.S. during the conflict. Similarly, the last option includes countries from South America that were not involved in the war against the U.S.