Can someone tell me about the rising tension between Japan and USA before the attack on Pearl Harbor began. It only needs to be one sentence or two.

First U. S didn't want to get involve in the war that was going on at that time so we stayed neutral, which means we traded with everyone. But then Japan attacked China, whom the U. S was also trading with and then we decided not to trade with Japan anymore and that got them angry. (They needed the natural resources that America had to become a bigger, stronger country).