A: The United States fought the Axis alliance in World War II. The Axis alliance consisted of Germany, Italy, Japan, Hungary, Romania and Bulgaria. These countries fought against the United States and the other members of the Allied forces. read more
The military history of the United States in World War II covers the war against Germany, Italy, Japan and starting with the 7 December 1941 attack on Pearl Harbor. read more
And a few days later, Germany and Italy declared war against the United States. President Franklin Roosevelt quickly decided that America could not fight major campaigns in the Pacific and in Europe at the same time. read more
The main countries that formed the Allied forces during World War II were the United Kingdom, the United States, France and the Soviet Union. Some of the other Allied nations included Australia, Canada, Belgium and China. World War II began in 1939 but the United States did not enter the war until the bombings in Pearl Harbor on December 7, 1941. read more
The US fought the Japanese and the Germans in WW2. The Axis powers (Italy, Germany, Japan). WWI was the Central Powers (Germany/Austria & Ottoman Empire). read more
The roots of World War II, which eventually pitted Germany, Japan, and Italy (the Axis) against the United States, Great Britain and the Soviet Union (the Allies), lay in the militaristic ideologies and expansionist policies of Nazi Germany, Italy, and Japan. read more