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They had been planning for months and months, the Japanese were allied with Italy and Germany - and taking over the US with its land and resources sounded like a good idea. December 7, 1941 they attacked by sea and air at Pearl Harbor killing over 2,400 soldiers and civilians. The USA declared war on Japan December 8 and on December 11 Germany declared war on the USA putting us at war on two fronts. The previous response is technically correct, at least from the viewpoint of the USA. The bigger picture however, needs to be reviewed for a more complete understanding.

Comment: the above is completely wrong and largely made up. Example: other than a couple of midget submarines, there was no 'Sea' attack on Pearl. The following is very accurate. A kudos to whomever posted it:

Japan was opened to the modern world only late in the 1800's. Previously Japan had been a middle ages styled feudal society. They quickly modernized and were successful in two major campaigns in the early 1900's. First they handily beat the Russians in the Manchurian arena, giving them a more or less free hand for thirty years in China. During WWI, 1914-1918, the Japanese took over the German Pacific island colonies. Using these two events as a springboard the Japanese became more and more aggressive. Korea, Formosa and north China were occupied next. The militaristic Japanese leadership desired an ultimate goal of a great eastern Asia empire stretching from Java to Siberia with Tokyo as its capital.

When the fantastic and unexpected German victories in Europe occurred in 1939, 1940 and 1941 (against Britain, the Netherlands, France and Russia - all colonial powers in the east Asia area) the Japanese leadership could count only one obstacle to further expansion - the USA. The reason the USA was in the way was due to the USA colonial empire in the far east (Philippines - These islands were an American colony since 1900 when they were forcibly taken from Spain. Afterwards a long and brutal war was fought against the Phillipinos who desired independence. By 1940 the islands had been 'pacified' more or less and were docile towards American occupation). The American colony was situated in the middle of the Japanese sphere and posed a threat to all movements by the Japanese navy. As such they had to be eliminated.

What immediately precipitated the Japanese to attack the USA at Hawaii and the Philippines was the USA led embargo of oil and other supplies to Japan. This declaration of 'economic' war by the USA triggered the Japanese to immediately advance their war plans.

The point of all this is that Pearl Harbor may be the 'start' of WWII in the Pacific from the USA standpoint, but truth is it had been going on for forty years as far as Japan was concerned. The war with the USA only meant one more beligerent for the Japanese who were essentially at war with all their neighboring countries and territories since 1900. I should add that neither the Japanese or Germans ever had any intention of 'taking over' the USA land or resources, despite what the top poster has stated.

The German war in Europe was fought mainly to secure Germany against Russian aggression and expansion. Ultimately the Germans hoped to be powerful enough to act as a balancing factor against looming American power. Of course, Germany lost and Russian aggression and expansion ensued unabated, leading to decades of war (hot and cold) between them and the USA (Berlin, Korea, Vietnam, Angola, Cuba, Afganistan - just to name a few).

The Japanese war aims were as I outlined above, to secure a great eastern Asia empire at the expense of the western nations empires in the same area. Japan never had war aims of taking over California or any other American territory.

Anything you've heard to the contrary is propaganda, much of it put out by Churchill's people who desperately desired to draw the USA into the war in order to help secure Britains place in the world. As for Britain, it's a classic situation of 'better be careful what you wish for'. Britain did get the USA into the war but the war cost the British their empire, much of their wealth and almost all their leadership in world events. Great job! As I see it, they didn't "get involved." They initiated hostilities themselves by occupying real estate that was not their own. They began invasions of other countries years before it was called a "World War."

Japan Declared war on China in WWII, taking over half the country. Japan also had an Alliance with Germany. After declaring war on the US (Pearl Harbor), Germany Declared war on the US, hoping Japan would invade the USSR (Russia). But Japan had secretly signed a non-agression treaty with the Soviet Union. -Feewet they got involved with the united states when they dropped a bomb on pearl harbor with fighter planes.

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โˆ™ 2015-04-24 07:35:29
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Q: How did Japan get involved in World War 2?
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Related questions

What countries were involved in World War 2 Japan?

Whitch countries were involved in world war 2 in addition to America and japan?

World War 2 atomic bombing in Japan?

Hitler started world war 2 then japan got involved

How was Tokyo involved in world war 2?

Capital of Japan

How did Mongolia get involved in World War 2?

They were invaded by Japan.

Why did japan decide to expand world war 2 in 1941?

Japan decided to expand World War 2 when they decided to bomb Pearl Harbor. When Japan did this America got very angry and got involved in the war that they had not planned to enter. America had Actually said that they were not going to get involved in the World War, but Japan changed that.

What country pushed US to get involved with world war 2?


What are the basic countries that were involved in world war 2?

Japan and Germany

When was World War II in japan?

World War 2 was in Japan during the years of World War 2, which was 1939 to 1945. Japan's involvement increases after Pearl Harbor attack in December 1941. This also involved the United States into the war.

Was japen involved in World War 2?

Yes. Japan fought against the US, Britain, and China in World War 2.

How was japan involved during world war 2?

Japan was the third member of the TRIPARTITE PACT. Germany, Italy, and Japan.

What was the total military involved in World War 2?

answer: Malaysia,Japan,Britain,

How did US get involved in world war 2?

The United States was attacked by Japan.

When did Japan actually become involved in the World War 2?


What key events of world war 2 were the USA involved in?

the nuking of japan

How long was Japan involved in World war 2?

They were officially in World War 2 6 years but they had started warring back in the 1930s.

Was the US involved in World War 2?

The United States was not actively involved in World War II up until December 1941 when they were attacked by Japan.

In what year did China get involved with World War 2?

Before World War 2, Japan had ordered a full scale invasion on China.(On 1937, about 2 years before WW2) Therefore, should be on the first day of World War 2, that is September 1 ,1939 had involved in World War 2.

Why was the US involved in japan after world war 2?

Pearl Harbor.....bombing.... you know?

Why did they US get involved in World War 2?

because japan performed a not war declared attack on pearl harbor.

What are all the countries directly involved in World War 2?

All of the countries directly involved in world war 2 were Germany,Italy,Japan,France,Great Britain,China,Russia,and America

Did Japan benefit from World War 2?

No Japan did not benefit from World War 2.

Did japan attack pearl harbor in World War 1 or World War 2?

WWII. It was what got the U.S. involved.

What year did japan get involved in world war 2?

1930's in China. 1941 with the US.

What cuntries were in World War 2?

Germany and japan for sure. but im not sure about if russia was involved or not.

When did the us become involved world war 2?

in 1941 when Japan bombed Pearl Harbour