“Some might respond to the last point by claiming that, despite the obviously finite magnitude of both the human and nonhuman resources used by government forces, national defense nevertheless does represent equal protection for all in the sense that there is a perpetual commitment to resist aggression against any part of the nation. But that is false, and the American Civil War is clear evidence of this error in reasoning. Union forces would have done nothing to protect the Confederate states if, say, the government of France had attacked them. Instead, the French would have been viewed as allies in the subjugation of the Southern "traitors.” Intervention from abroad would only have been resisted by the North if it was accompanied by a demand that the Southern states, once defeated, would become a possession of that foreign power. And one cannot escape by claiming that the Confederacy was viewed as a separate nation and therefore was not owed protection. The North consistently maintained that the Confederacy was an unlawful entity along the lines of a criminal gang, not a sovereign nation. In short, governmental protection against aggression is never guaranteed, but instead may change with political conditions. In no sense, then, does national defense necessarily imply equal protection for all areas and all persons. True defense, though its effects may be widespread, is microeconomic in nature.”