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Germany didn't declare war on the US in World War 1. It was the US that declared war on Germany on April 6th 1917 as a result of the unrestricted submarine war introduced by Germany in January that year. - I Warner

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17y ago
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16y ago

1917, as a result of the German attack on the Lusitania.

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12y ago

April 6th 1917

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Q: When did the us declare war in ww1?
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Related questions

Did great Britain declare war on Germany in ww1?

yes


Why did the US change from neutral to declare war on Germany?

In the WW1 the US declared war on Germany after the sinking of seven US merchant ships by German submarines and the publication of the Zimmerman Telegram. In the WW2 was Hitler to declare War on the USA on Dec.11,1941.


Which us war was supose to be the quick war?

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Did Finland declare war on the US?

No, and the US did not declare war on Finland. However, UK declared war on Finland on 6 December 1941.


Which nation was the first to declare in ww1?

Austria-Hungary declared war on Serbia and it pretty much snowballed from there.


Can declare war?

For the United States, only the US Congress has the power to declare war. That's explicit in the US consitution.


What was happening in Europe that caused the US to declare war on Germany?

The US did not declare war on Germany. Germany declared war on the US shortly after the Japanese attack on Hawaii.


Who can declare war?

Congress


When did the Us declare war on china?

the us didn't declare war on china in world war 2 us declared war on japan on 1941 when japan bombed pearl harbor hawii


Why did US involve themselves in ww1?

America never wanted to be involved in World War 1 but the Germans introduced unrestricted submarine warfare, and that prompted Woodrow Wilson to ask the American Congress to declare war on Germany.


Why did the US declare war on Russia?

The US didn't declare war on Russia. The "cold war" refers only to the hostility of each country towards eachother.


What is the power of congress to declare war?

The Constitution grants Congress the sole authority to declare war.