A protection against invasion, is due from every society, to the parts composing it. The latitude of the expression here used, seems to secure each state not only against foreign hostility, but against ambitious or vindictive enterprises of its more powerful neighbours. The history both of ancient and modern confederacies, proves that the weaker members of the union ought not to be insensible to the policy of this article.
Protection against domestic violence is added with equal propriety. It has been remarked, that even among the Swiss cantons, which, properly speaking, are not under one government, provision is made for this object: and the history of that league informs us, that mutual aid is frequently claimed and afforded; and as well by the most democratic as the other cantons. A recent and well known event among ourselves has warned us to be prepared for emergencies of a like nature.
At first view, it might seem not to square with the republican theory, to suppose, either that a majority have not the right, or that a minority will have the force to subvert a government; and consequently, that the federal interposition can never be required but when it would be improper. But theoretic reasoning in this, as in most other cases, must be qualified by the lessons of practice. Why may not illicit combinations for purposes of violence, be formed as well by a majority of a state, especially a small state, as by a majority of a county, or a district of the same state; and if the authority of the state ought in the latter case to protect the local magistracy, ought not the federal authority in the former to support the state authority? Besides, there are certain parts of the state constitutions, which are so interwoven with the federal constitution, that a violent blow cannot be given to the one, without communicating the wound to the other. Insurrections in a state will rarely induce a federal interposition, unless the number concerned in them, bear some proportion to the friends of government. It will be much better, that the violence in such cases should be repressed by the superintending power, than that the majority should be left to maintain
