Edward Douglass White, Cox v. Wood — Opinion of the Court
“ That the power of Congress to compel military service and the duty of the citizen to render it when called for were derived from the authority given to Congress by the Constitution to declare war and to raise armies. (b) That those powers were not qualified or restricted by the provisions of the militia clause and hence the authority in the exercise of the war power to raise armies and use them when raised was not subject to limitations as to use of the militia, if any, deduced from the militia clause. ”
