I think that FDR meant that the bombing of Pearl Harbour was a very aggressive affront to the American people and something which could not be accepted and required strong action to oppose this flagrant act of war on a country not involved in the WWII yet.
Answer:Why did several American Indian tribes support the British during the American Revolution? A) They supported the British because they hoped that a British victory would keep colonists off their land. ... They supported the British because the Declaration of Independence neglected to mention Indian lands.
