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The USA entered World War Two a day after the Japanese attacked the US navy base of Pearl Harbor in Hawaii on December 7, 1941. After declaring war on Japan, Germany declared war on the USA. Thus, the US entered a two front war.

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โˆ™ 2015-07-10 23:03:46
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โˆ™ 2017-03-18 23:43:58

December 8, 1941 was the date of the US declaration of war, but in fact the US was at war on December 7, 1941 at about 7:55 AM when the Japanese attacked Pearl Harbor, Hawaii.

This war, while not unexpected, was not the war the US wanted to be in because it was felt that Germany was the greater threat. Hitler didn't declare war against the US until December 11, 1941, in support of his Axis agreements with Japan.

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Q: When did the US enter World War 2?
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Related Questions

Why did us enter war world 2?

depends on who us is


Where did the US enter World War 2?

Into Europe


Was it vital for the US to enter in World war 2?

yes it was vital 4 the US 2 enter World War 2 because we needed their help 2 win the war. It turns out tht because of them we won the war.


Why did us enter the Great War 2 and a half years after the war was started?

World War 2


Why did the US declare war on Germany and enter world war 2?

Germany declared war on the US. The US entered World War 2 because of the Pearl Harbor raid.


When did the US enter world war 1 and 2?

1941


What did the us enter after world war 2?

pearl harbor


What year did the US enter to world war 2?

1941


Did the US enter World War 2 on D-Day?

No


What prompts the US to enter World War 2?

Pearl Harbor


When did US enter in World War 2?

08 Dec 1941


What year did the us enter the world war 2?

The us entered ww2 in 1941


What year did the US enter Wolrd War 2?

1909 to 1944 The US entered World War 2 in December of 1941.


In what year did the US declare war and enter world war 2?

on decmber 8 1941


What country was primarily responsible for causing the US to enter the war?

World War 2 : Japan.


Why did the US enter the World War 2?

Japan attacked the US Fleet at Pearl Harbor.


When did the US enter World War 2 what was this day know as?

march 9


What time did the us enter World War 2?

Dec 07, 1941


Why USA enter the world war 2?

the US got bombed by Japan


Did the sinking of the Lusitana cause the US enter World War 2?

No.The sinking of the Lusitania caused the US to enter WW1.


When and why does the us enter world war 2?

The US entered World War II after the Japanese attacked Pearl Harbor December 7, 1941.


Why did US hesitated about entering world war 2?

Because it didn't want to enter a European war


What us navy base was bombed which promoted the us to enter World War 2?

Pearl Harbor


Why did the us finally enter the world war 2?

The US entered World War 2 after the attack on Pearl Harbor. When over 2,400 US lives were lost in a sneak attack on a Sunday morning, there was no stopping US involvement in the war.


When did Portugal enter World War 2?

It didn't enter the war.