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When did japan declare war in world war 2?

Updated: 12/15/2020
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11y ago

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Japan has been at war already, but after they attack on Pearl Harbor, the US declared war on them the next day 1942

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Q: When did japan declare war in world war 2?
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Related questions

What nation did the US declare war on in World War 2?

On Japan.


Can japan declare war after world war 2?

Any country can declare war on anybody else. What matters is can you back it up?


When did the Us declare war on china?

the us didn't declare war on china in world war 2 us declared war on japan on 1941 when japan bombed pearl harbor hawii


Which year did the Soviet Union declare war on Japan during World War 2?

1945


What happens to make America declare World War 2?

Japan attaking pearl harbor


Did anyone declared war on the us before they entered World War 2?

no, japan did not formally declare war Germany declared war on u.s. after u.s. declared war on japan


Why did Japan declare war on China during World War 2?

The Mukden Incident ~ see related link below .


When did the allies declare war on japan in world war 2?

Sorry for that last answer. Some people. It all started with Pearl Harbor for America. Since so much damage was inflicted, Roosevelt soon asked the UN to declare war on Japan.


Who did the US declare war on when they entered World War 2?

The United States was bombed by the Japanese at Pearl Harbor which cause a declaration of war but Germany had an alliance with Japan and it had forced the United States to declare war on Germany too. Then Germany had an alliance with Italy which cause the United States to declare war on yet another country. Then the world was at war and therefore World War 2 started.


In 1941 japan entered World War 2 when it invaded Pearl Harbor true or false?

This statement is true. Japan started the war with the United States when they attacked without warning and did not declare war on the US. Within days Germany declared war on the US and the US declared war on Japan. The US then entered World War 2 as well as Japan.


What date did US declare war on Japan during world war 2?

December 8, 1941, the day after the Japanese attacked Pearl Harbor


What led to the us full involvement in World War 2?

The immediate cause was Japan's attack on Pearl Harbor. This caused the US to declare war on Japan, which led to Germany and Italy declaring war on the US.