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Because of the Japanese attack on Pearl Harbor. The next day (8 December 1941) a declaration of war was approved by the US Congress.
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When did the United states join the allies in World War 1?
1914
What year did the United states join Britain an France in World War 2?
1917
What caused the United States to join the Allies in fighting World War 1?
the Germans' use of unrestricted submarine warfare
When did the U.S. join the war and which side did it support?
The United States joined World War I on April 6, 1917 and supported the nations in the Triple Entente, which were Britain, France, and Russia.
What led the united states into joining World War 2?
the bombings on pearl harbor gave a valid reason for america to join the war which they were going to do sooner or later because england and france were their allies
When did the United states join the allies in World War 1?
1914
When did the United States officially join in to World War 1?
January 3330
When did the United States join World War 1?
April 6th, 1917
What year did the United states join World War 2?
YES hope
What year did united States join world war 2?
YES hope
What event made the united state go to World War I?
The sinking of the Lucitania was the event that made the United States join World War 1
Who did US join in World War 2?
The United States of America joined the Allied Nations in World War II.
What year did the United states join Britain an France in World War 2?
1917
What major allied power refused the join the league of nation's following the end of world war 1?
The United States did not join the League of Nations after World War I.
What major Allied power refused to join the League of Nations following the end of World War 1?
The United States did not join the League of Nations after World War I.
Why was the zimmerman telegram important in world war 1?
The Zimmerman telegram was published in the United States on March 1, 1917. It was a coded telegram asking Mexico to join Germany's side on World War I and Germany promised that if they join them that they would get their lost and back from the United States. Here is what they lost to the United States: New Mexico, Arizona and Texas. The zimmerman Telegram was the last straw for the United State and on April 6, 1917 the United States declared war on Germany.
What was the US at the beginning of world war 1?
Neutral. The United states did not join world war one until Lustinia got sunk. FROM: CACTC:)
