Of the attack on Pearl Harbor by answering the following questions:

Did Winston Churchill have foreknowledge of the impending Japanese attack on Pearl Harbor and withhold this information to ensure that the Americans would be forced into the war? Did President Roosevelt have foreknowledge of the impending Japanese attack on Pearl Harbor and withhold this information to ensure that the act of aggression would swing American public opinion in favour of entering the war and provide him with the congressional support that he needed? Do the known facts of the Pearl Harbor episode support or refute either or both of these questions?