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September 2, 1945.

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Q: When did the united states officially declare the end of World War 2?
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When did the US officially declare war in World War 1?

The United States Congress officially declared war on Germany on April 6, 1917. President Woodrow Wilson asked for a declaration on April 2.


When did the United States officially join in to World War 1?

January 3330


What was the first nation to formally declare war in World War 1?

united states


Who did the US declare war on when they entered World War 2?

The United States was bombed by the Japanese at Pearl Harbor which cause a declaration of war but Germany had an alliance with Japan and it had forced the United States to declare war on Germany too. Then Germany had an alliance with Italy which cause the United States to declare war on yet another country. Then the world was at war and therefore World War 2 started.


When the yanks join in world war2?

The United States officially declared war on Japan and Germany in December 1941. However the United States had been helping the British with armament and trade goods covertly for a couple of years prior to actually entering the war officially.


When does the United States declare war on Germany?

On April 6, 1917 (during World War I) the United States Congress declared war upon the German Empire. In December of 1941 (during World War II), it was actually Germany and its Axis partners who declared war on the United States. This was after the bombing of Pearl Harbor and the subsequent declaration of war upon Japan by the United States.


What do you have to do to declare war on another country?

Different countries do it in different ways. In the US, only Congress can do it- but the Constitution doesn't specify exactly how, so it's always been done basically like passing a law. In countries that have a monarch, like Britain or Japan (before World War II), that monarch has the sole power to declare war, but they usually consult their advisors before doing so.


What was the immediate cause of the official US entry into World War 2?

Japan bombed the US Naval Fleet in Pearl Harbor, Hawaii on December 7th, 1941. This caused the US to declare war on Japan the next day. This officially put the US into World War 2. The day after that, the United States declared war on Germany.


Who attaced Pearl Harbor?

The Japanese attacked Pearl Harbor, and the United States entered World War II. They were involved previous to the attack, but they were officially fighting then.


What happened on 1941 in Pearl Harbor?

Japan bombed Pearl Harbor, Hawaii on December 7th in 1941 and World War 2 officially started for the United States.


Based on the information in the timeline which causal explanation for the German actions in World War 2 is accurate?

Answer this question… Germany's pact with Japan caused it to declare war on the United States.


United States declare war on germany?

Yes they did. Twice.Actually, I believe Germany technically declared war on the US during the second world war (1941).