Question

Why did Japan decide to attack the U.S

Answer 1

Because the US was sending supplies and vehicles to the allies to aid while also claiming to be neutral in the war. There was also a mass of 100 recorded ships located at Pearl Harbor at the time so the Japanese general of war may have seen this as a threat.

Step-by-step explanation:

Answer 2

The Japanese intended the attack as a preventive action to keep 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 the United States.