Question

Why would Japan attack the US in 1941 ?

Answer 1

Japan intended the attack as a preventive action. Its aim was to prevent the United States Pacific Fleet from interfering with its planned military actions in Southeast Asia against overseas territories of the United Kingdom, the Netherlands, and those of the United States.



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Answer 2

They attacked because the US stoped supplying oil to Japan, and other resources after they learned about what they did in China. The goal was to destroy the pacific fleet but it failed.