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Germany and Italy declared war on the USA on 11 December 1941. The US got involved in World War II when the Japanese bombed Pearl Harbor on December 7, 1941, so US and UK declared war on Japan.

After that USA made military camps in Britain and helping UK with Operation Overlord (D-day) in 1944, as well as in many other battle theatres.

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12y ago
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13y ago

December 8th 1941, the day after the Japanese bombed pearl harbor. when we declared war on Japan, the Nazis and the rest of the axis declared war on us. this caused us to declare war back on the rest of the axis

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12y ago

Japan Bombed Pearl Harbor, so the US declared war on Japan. A couple days later Germany and Italy declared war on the US. The US was also at war with Bulgaria and Romania but took no major actions against them.

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14y ago

The United States declared War on Japan on 12/8/41, the day after Pearl Harbor. Germany and Italy, who were Japan's allies declared war on 12/11/41

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Q: When did axis powers declare war on the United States?
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Related questions

What country controlled the axis powers?

united states


Who were in the Axis Powers Allied Powers?

The Allied powers were Britain, France, Russia, the United States, Canada and Australia. The Axis powers were Germany, Italy, and Japan.


What is the axis powers during World War 2?

Germany and Japan were the main Axis powers. The United States were part of the Allies.


What were the major powers of the axis and the allies?

The major Allied powers were the United States, Britian, and the Soviet Union and the major Axis powers were Germany, Japan, and Italy.


What were the majors powers fighting the axis?

United States, Britian (with Canada), and Russia.


What do the terms allis and axis have to do with World War 2?

In WWII, the Axis powers were Germany, Japan and Italy; the Allied powers were the United States, England, and France.


What was United States response when japan allies with Axis powers?

Embargos & preparations for war.


What led to the decline of the Axis initiative and military power?

When the United States entered the war, the Axis powers began to fail.


Who were the Allied Powers and Axis Powers in War World Two?

In the Allies Powers there were France, Britain, Canada, New Zealand, India, Soviet Union, Australia, and the United States of America. And in the Axis powers there are Germany, Italy, and Japan.


What did Germany Italy and Japan became known as in 1936?

The Axis Powers. The Central Powers included the United States, Great Britain, and France.


Who were on the sides of World War 2?

the allied powers were the United States, Britain, France, Russia And the axis powers were mainly Germany, Italy, and Japan


Were the Japanese on the Nazis side?

The Japanese were part of the Axis powers, opposite Britain, the United States, and the Soviet Union.