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the us entered the war in 1941 after the Japanese bombed pearl harbor until the end of the war 1945.
The U.S. was in WWII from December 8, 1941 (when FDR signed the declaration of war against Japan, and 4 days later Germany declared war on the U.S.) until September 2, 1945 (when Japan signed the Japanese Instrument of Surrender on board the USS Missouri).

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10y ago
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14y ago

Although World War 2 started in 1939 the United States dis not enter it until December 7, 1941, when the Empire of Japan launched a surprise attack on Pearl Harbor. The war ended in 1945 (Germany: May 7, 1945, Japan:August 15, 1945) So the USA was (technically) in the last four years of the war.

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16y ago

December 1941 - August 1945. The US entered the war following Pearl Harbor and finished the war with the bombing of Hiroshima and Nagasaki.

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12y ago

they fought for 4 years December 7, 1941- 1945

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12y ago

America was in WW2 from December 1941 (Pearl Harbor attacks) to when the war ended, May 1945.

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16y ago

Almost four years.

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16y ago

1941 to 1945

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Q: How many years was the US involed in World War 2?
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Was the US involed in world war 2?

Yes


How did the Us get involed in world war 1?

Because the russans were are allys


Why did America get involed in world war 2?

google pearl harbor


In what year did the us get involed in world war 2?

December, 1941


Why did the US get involed with World War 1?

because the russans were allys


When did the US get involed in world war 2?

when the japanies bombed pearl harbor


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Because the Germans invaded USSR.


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to make peace betweeen the countries involed in the the war of world war 2


Who was involvd in World War 2 -?

most of the world was involed with only a few neutral contries therefore appropeately named WORLD WAR II


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What was reason for US involvement in World War 2?

They got involed in the war because the Japanese bombed pearl harbour.