Which countries did the United States fight against during World War II?

The United States fought against Japan, Germany, and Italy during World War II. This coalition of countries is often referred to as the Axis Powers. Japan initiated the conflict in the Pacific by attacking Pearl Harbor in December 1941, prompting the U.S. to enter the war. Germany, under Adolf Hitler, was a primary aggressor in Europe, leading to widespread conflict on that front. Italy, initially allied with Germany, also participated in military actions against the Allies. The U.S. played a significant role in defeating these Axis nations through various military campaigns across both theaters of war, significantly contributing to the eventual Allied victory.

The other options presented do not accurately reflect the Axis Powers. France and Spain were not significant adversaries of the U.S. during the war, with Spain being neutral during WWII. Germany, Austria, and Hungary do not represent the main combatants against the U.S., as Austria was annexed by Germany, and Hungary was a satellite of the Axis. Japan, China, and Russia does not align with the main adversaries since China was actually one of the Allied powers fighting against Japan, and the U.S. was primarily allied with Soviet Russia.