Answer:
to prevent European forces on the soil of Americas.
Explanation:
Since the 19th Century and Monroe's doctrine, United States tried to prevent European countries to interfere in the internal conflicts and problems on the American continent. Roosevelt believed that United States are the ones that have the obligation to prevent conflicts and to create a peaceful environment especially in the region of the Caribbean. United States in that sense behaved like a police that will prevent problems.
It is the income per man hour
The "Day of Infamy" speech given by President Franklin D. Roosevelt on December 8th 1941, was given in front of the US Congress. His goal in giving this speech was to explain what happened and Pearl Harbor and ,more importantly, ask for Congress permission to declare war on Japan.
It is clear that this speech is supposed to paint the Japanese military in a negative light, as FDR calls the attack "cowardly" and "dastardly." Along with this, he is trying to invoke a sense of patriotism among the Congress, as this attack killed American soldiers/citizens. His speech rallies Congress behind this cause and results in Congress approving of war with Japan.
The attack on pearl harbor was intended as a prevention order to keep the U.S pacific fleet from interfering with military actions the empire of japan was planning on south east Asia against overseas territory of the united kingdom, the Netherlands, and the United states. <span />