The operations of the federal government will be most extensive and important in times of war and danger; those of the State governments, in times of peace and security. As the former periods will probably bear a small proportion to the latter, the State governments will here enjoy another advantage over the federal government. The more adequate, indeed, the federal powers may be rendered to the national defense, the less frequent will be those scenes of danger which might favor their ascendancy over the governments of the particular States. James Madison
Federalist Papers #45