1. The United States was divided on going into war and not. They decided to not go into war
2. The United States asked for Britain to pay them back after lending them weapons
3. Roosevelt wanted the World to share "america's entitlement" to the four freedoms.
4. Roosevelt signed a declaration of war the same day Pearl Harbor was attacked. The rest of the United States had his back when he did this with chants on "remember pearl harbor"
Hope this helped