What major event caused national leaders to finally realize that they needed a stronger national government?

During world war ll, the untied states was a member of the allies axis european theater pacific theater

Which one of these were common aspects of war efforts during world war 1 1. rationing 2. war bonds 3. using schools as military facilities 4. child soldiers 5. women working in factories circle all that apply

What did the us civil rights movement gain new momentum after world 2