The War Industries Board was created during World War I to ensure adequate military supplies (A).
Answer:
it is hard to imagine World War II without the United States as a major participant. Before the Japanese attack on Pearl Harbor in 1941, however, Americans were seriously divided over what the role of the United States in the war should be, or if it should even have a role at all. Even as the war consumed large portions of Europe and Asia in the late 1930s and early 1940s, there was no clear consensus on how the United States should respond.
Explanation:
It was marked by the conflict over the proper allocation of power between the states and the federal government.