Answer:
They felt extremely motivated to fight for their country.
Step-by-step explanation:
After the attack on Pearl Harbor, the American's agreed with the President's declaration of war. They knew that they would eventually have to get caught up in the war. If they just let Japan attack them and didn't do anything, they would have been seen as a weak country. And Japan deeply regretted booming their ships because now they woke up the sleeping beasts.
This is what I think so yeah!