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WWI - Congress declared war on Germany on April 6, 1917 and Austria-Hungary on December 7, 1917.

WWII - Congress declared war on Japan on December 8, 1941, and on Germany and Italy on December 11, 1941.

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13y ago
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12y ago

December 8th of 1941 was the day that the United States of America entered World War 2. The reason of entering was because the bombing of Pearl Harbor.

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11y ago

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.

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Q: What was the date that the US entered war?
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Related questions

What date US entered World War 1?

The US entered the war on April 6,1917

What was the date when the US entered the war?

You need to specify WHICH war- we have had more than one.

What would have happened if the US had not entered the war after the Pearl Harbor attack?

The US would have entered the war at a later date, in response to some other Axis provocation.

What was the date the us entered war world 2?

December 8, 1941

Your ability to recall the date on which the US entered World War 1 depends on?

Semantic memory and reading US history.

What is the date that the usentered war?

The US entered World War 2 on 8 December 1941 - the day after the Japanese attack on Pearl Harbour.

Would the US have entered World War 2 had Pearl Harbor not occurred?

The US most likely would have entered WW II, but it would have been at a later date than 1941.

Why did the allies embark on the war in 1917?

The allies entered the war in 1914; the US entered the war in 1917.

What was the longest war the US has ever entered?

The longest war the United States ever entered was the Vietnam War.

What year did the US entered world war 1?

1917 smart

What are the causes of the US entry into Wolrd War 1?

Un-restricted submarine warfare. If it wasn't for that, the US would not have entered the war. As it was, the US was only in it for a year ended in 1918 (the US entered the war in 1917).

When did the US enter war?

The us entered the Vietnamese war in 1950 they exited in 1975 entered to avoid a communist takeover of south Vietnam