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December 7th 1941 war was declared against Japan
December 11th 1941 war was declared against Germany & Italy
1941, when the US entered the war because Pearl harbour was attacked December 7, 1941.
In terms of a Declaration of War, that was on December 8, 1941(the day after the Japanese attack on Pearl Harbor). The U.S. Congress declared war on Japan. The U.S. had been sending aid and supplies to Britain for some time before that and also through the Lend Lease Act naval ships were sent. Also the U.S. Navy had been providing escort to convoys across the Atlantic as protection against Nazi U-boats(submarines). There were also attacks against U.S. ships in the Atlantic with at least one Naval ship(maybe more) being sunk by U-boats. This was before Pearl Harbor, so it was a steadily escalating situation with regard to America becoming fully involved.
The U.S. entered World War II in 1941, the day after the Japanese surprise attack at the naval base at Pearl Harbor, Hawaii.
But be aware that World War II began two years earlier, in Europe in 1939.
The United States entered WW II in 1941 we only were in battle for 4 years
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∙ 9y ago
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∙ 14y agoDecember 7, 1941. Right after the attack on Pearl Harbour
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∙ 15y agoSunday, December 7, 1941 - The day of the attack on pearl harbour
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∙ 12y agoyour moma your daddy your bald headed granny
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∙ 13y agoWiki User
∙ 15y agoDec 7, 1941 Pearl Harbor
Anonymous
Dec -1941
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What were jeannette rankins views on World War 1?
Jeannette Rankin did not want the United States to enter the World War 1.
In which year did America enter World War 1?
The US entered World War 1 on April 6, 1917. The war ended about one and a half years later.
What caused United States to enter World War 2?
tu mama huey
What was the last country to enter World War 1?
Mongolia, finally announced its support for the Allies on August 9, 1945. This was after the use of atomic weapons in Japan. There were many neutral nations that joined the Allies as the war was coming to a close. For a complete list of participants see; http://en.wikipedia.org/wiki/Participants_in_World_War_II
In what year did the United states enter the Great War?
The United States of America entered the great war on April 6, 1917 to aid its allies Great Britain, France, and Russia. Over 2 million American soldiers fought in the trenches of France.
When did America officialy enter world war 2?
The United States declared war on Japan on 8th December 1941, the day after the Japanese attack on Pearl Harbour.
When did Hawaii enter the US?
Hawaii became the 50th state in the United States of America on Aug 21st 1959.
What year did Maine enter us?
Maine entered the united states of America in 1820 and it wasn't a original colony
How many present states and parts of present states were part of the US in 1783?
There was no United States of America in 1783. The first state to enter the Union was Delaware in 1787.
How many present states and part of the present states were part of the US in 1783?
There was no United States of America in 1783. The first state to enter the Union was Delaware in 1787.
Does a colombian need a passport to enter the United States?
Yes, they definitely need a passport to legally enter the United States.
What identification is need to enter us Virgin Islands?
As long as you are from the United States citizen, You can enter it. We are a United States territory
In what year did the US enter world war1?
The United States declaration of war is from 6 April 1917.
Whose approval is needed for a state to enter the Union?
Congress approves new states into the united states of america. New states may not be created from within other existing states however.
What were jeannette rankins views on World War 1?
Jeannette Rankin did not want the United States to enter the World War 1.
Why was Hawaii the last state to enter as states?
Because it was illegally stollen/occupied by america when it was a soverign country. Hawaiians did not want to become a part of the united states voluntarily.
What was the effects in pearl harbor after the bombing?
makes that United States declared the war and enter to the World War 2
