Answer:
Hi. sure it was not pearl harbor because the attack happened later.
What happened before was the invasion from Japan to China.
This invasion was not well seen and was a concern for the Western powers since Japan acquired land of enormous China and increased its military power (let's not forget that Japan was an ally of Germany, therefore an enemy for the allies).
The allied request is that Japan cease its attacks immediately to China, Japan did not.
Then, the English and the United States seized the metal supplies to Japan and blocked the access of the Panama Canal for Japanese ships.
This increases the tension between these countries
Subsequently, Japan decides to continue its expedition to the south of the Pacific with the intention of acquiring resources, territories, and influence.
Tensions continued to rise, and the final trigger is the decision (much questioned) of attacking Pearl Harbor.