The United States was unprepared for the bombing of Pearl Harbor because they where in peace with Japan and had no idea that they would do something like that.
The United States was unprepared for the attack at Pearl Harbor because up until that point America was not involved in the war. It was at that point that we became involved in the war.
The effect of the Allies' policy of appeasement toward the Nazi regime in Germany was that Germany continued to invade other countries and expanded it's empire.
