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.

Japan wanted to take over the pacific and wanted to cripple America’s military strength in the pacific. They wanted to attack America so that they wouldn’t get in their way of their expansion in Malaya and the rest of the pacific.

 

Seeking raw materials to fuel its growing industries, Japan invaded the Chinese province of Manchuria in 1931. By 1937 Japan controlled large sections of China, and accusations of war crimes against the Chinese became commonplace

Japan’s attack on Pearl Harbor took place on December 7, 1941. The U.S. military suffered 18 ships damaged or sunk, and ~2,400 people were killed. Its most significant consequence was the entrance of the United States into World War II.