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after

1) Germany's submarines sunk their ships

2) they intercepted the zimmerman telegraph

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Q: When did US became involved in world war 1?
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How did world war change after the US became involved?

The war was a stalemate before the United States became involved. After the United States became involved, the balance tipped to the Allied powers.


Did World War 1 change after the US became involved?

The war was a stalemate before the United States became involved. After the United States became involved, the balance tipped to the Allied powers.


How did World War 1 changed after the US became involved?

The war was a stalemate before the United States became involved. After the United States became involved, the balance tipped to the Allied powers.


When did the US get involved with World War 2?

The United States became involved in the World War II about March 1941.


What was the impact in encouraging the US to become directly involved in World War 2?

a. the US ceased to simply profit from arms sales and became heavily involved in fighting. b. Germany declared war on the US. c. the United Nations was formed. d. the European war became a world war. e. etc etc.


How did the us become invloved in World War 2?

They became involved when the Japanese bombed Pearl Harbor


When did the US became involved in World War 1?

The United States entered World War I on April 6, 1917, and remained in the war until it ended on November 11, 1918.


How US become involved in World War 2?

the U.S. became involded in WWII after Japan attacked Pearl Harbor


the us became involved in world war 2 to oppose the aggression of?

it joined ww2 because of the attack on pearl harbor


When did the us became involved in the war?

The United States entered World War I on April 6, 1917, and remained in the war until it ended on November 11, 1918.


Was the US completely neutral during World War I?

No, America was not involved in the war until the enemy became a threat to them. they joined the war of world war 1 late and then kicked their asses. same with WW2 The US joined the Allies in April 1917 in WW1.


Why did the US refuse to get involved in World War 2?

The u.s. DID get involved.