Who did the United States fight in World War II?

During World War II, the United States fought against the Axis powers, which primarily consisted of three main countries:

• Nazi Germany: Led by Adolf Hitler, Nazi Germany was a major aggressor and central power in World War II. The United States joined Allied forces in combatting Nazi Germany's expansionist ambitions and genocidal policies.
• Imperial Japan: The Empire of Japan, under Emperor Hirohito, was another principal adversary of the United States during World War II. The United States entered the war after the Japanese attack on Pearl Harbor in 1941 and engaged in extensive military operations against Japanese forces in the Pacific theater.
• Fascist Italy: Italy, under the rule of Benito Mussolini, aligned with Germany and Japan as part of the Axis powers. The United States participated in campaigns against Italian forces in North Africa, Italy itself, and other European theaters.

The United States, along with its Allied partners, played a crucial role in defeating these Axis powers and bringing an end to World War II.