It is primary because it is the official process of methodically collecting information about a certain topic in a specific time period
Can you break down the question for me
Many Americans oppose U.S. participation in World War II for a number of reasons:
1) Americans did not want to have anything to do with any more European Wars, as the US went back to isolationism after World War I.
2) Because of a mixed population, it was better to wait for a reason to declare war, as the population was divided in between the two sides.
hope this helps
