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On President Franklin D. Roosevelt's recommendation, the US Congress declared war on Japan on December 8, 1941, following the Japanese attack on the US fleet at Pearl Harbor, Hawaii. Because of their treaty with Japan, Germany declared war on the US on December 11.
The US had been directly and indirectly aiding Britain and Russia (against Germany) and China (against Japan).
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoIf you're asking why the U.S. got in to World War 2 it's becuase the Japanese bombed pearl harbor and the U.S. immediatley declared war
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Who was the leader of soviet union when the us entered world war 2?
Joseph Stalin was the leader of the Soviet Union when the United States entered World War 2.
Who entered World War 2 first the us or great Britain?
Britain
When the US entered world war 2 who did they first invade?
normandy
What year did the us and Canada become allies with World War 2?
As soon as the US entered the war in December 1941
What countries entered World War 2 after japan bombed pearl harbor?
US
Who was the us president when the us entered world war 2?
Fdr
Who was glad that the US entered world war 2?
Britain
What was the year the US entered world war 2?
1941
Who was the leader of soviet union when the us entered world war 2?
Joseph Stalin was the leader of the Soviet Union when the United States entered World War 2.
When the US entered World War 2 one of its allies was?
Canada
Which country has fought in the world war 1 or 2?
The US entered WW1 in 1917. The US entered WW2 in 1941.
What events or sequences that lead US into World War 2?
US entered to World War 2 because Japan attacked on Hawai islands which is the territory of US
What year did the US enter Wolrd War 2?
1909 to 1944 The US entered World War 2 in December of 1941.
What were the US doing before they entered World War 2?
Enjoying life.
What was the date the us entered war world 2?
December 8, 1941
Who entered World War 2 first the us or great Britain?
Britain
When the US entered world war 2 who did they first invade?
normandy
