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December 8, 1941, the day after Japan's sneak attack on Pearl Harbor.

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12y ago
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12y ago

World War Two was declared after the attacks on Pearl Harbor because tensions rose between America and Japan.

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11y ago

The United States declared war on Japan the next day, December 8, 1941 (Washington DC time).

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Q: How many days after the attack of pearl harbor unti lunited states declared war?
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Related questions

Who did the United States attack after pearl harbor?

America declared war on Japan. Germany then declared war on America.


What was Hitlers Response to Pearl Harbor attack?

What happened was when the Japanese attacked the United States Pacific Fleet at Pearl Harbor, the United States declared war on Japan and Germany being allied with Japan declared war on the United States.


What was the attack of Pearl Harbor about?

The American Fleet was anchored in Pearl Harbor, Hawaii. The Japanese bombed Pearl Harbor on December 7, 1941. It was a surprise attack. The United States declared war on Japan. It caused the United States to enter World War 2.


How did the U.S. respond to the Japanese attack on preal harbor?

Roosevelt declared war on Japan and in turn Germany declared war on the United States. The game was on at that point.


Who did Johnson declare war on in America?

The United States declared war on Japan after the attack on Pearl Harbor and immediately after Germany and Italy both declared war on the United States because of the Tripartite Pact.


What was the immediate result of the sneak attack on pearl harbor Hawaii?

The United States declared war on Japan, and entered World War 2.


Did the attack on Pearl Harbor take place during World War 2?

The Attack on Pearl Harbor started WWII for the Americans but it was already going in Europe for several years. After the attack the Unites States declared war on Japan and Germany bringing the U.S. into the war.


Why did United states enter world war 2?

Japan bombed Pearl Harbor in Hawaii. We declared war on Japan and then Germany declared war on USA since Japan was Germany's ally


What did the US declare war on Germany?

Following the attack on Pearl Harbor on December 7, 1941, the United States declared war on Japan. Because Germany and Japan were in an alliance, Germany then declared war on the US. The United States, in turn, declared war on Germany.


Who responded to the Japanese attack on pearl harbor?

the united states responded to the attack on pearl harbor.


What was a consequence of the Japanese surprise attack on pearl harbor?

The United States declared war on Germany.This answer is now correct.


What ended war at Pearl Harbor?

The US declared war on Japan after Japan's attack on Pearl Harbor, thus bringing the United States into WWII. There was no war at Pearl Harbor itself, just the one bombing on December 7, 1941.