"No matter how long it may take us to overcome this premeditated invasion, the American people in their righteous might will win through to absolute victory. I believe I interpret the will of the Congress and of the people when I assert that we will not only defend ourselves to the uttermost but will make very certain that this form of treachery shall never endanger us again." *
That lasted three months short of 60 years.
It's also worth noting that Germany and Italy had nothing to do with the Pearl Harbor attack, they merely shared the same fascist philosophy and aggressive attitude toward the Western democracies, but we still fought them and made their defeat number one on the to-do list over defeating Japan.