The Anarchists most certainly believe in the Church; only they insist that all its work shall be purely voluntary, and that its discoveries and achie… - Benjamin Tucker

This distinction between invasion and resistance, between government and defence, is vital. Without it there can be no valid philosophy of politics. Upon this distinction and the other considerations just outlined, the Anarchists frame the desired definitions. This, then, is the Anarchistic definition of government: the subjection of the non-invasive individual to an external will. And this is the Anarchistic definition of the State: the embodiment of the principle of invasion in an individual, or a band of individuals, assuming to act as representatives or masters of the entire people within a given area.

"But," it will be asked of the Anarchists at this point in the argument, "what shall be done with those individuals who undoubtedly will persist in violating the social law by invading their neighbors?" The Anarchists answer that the abolition of the State will leave in existence a defensive association, resting no longer on a compulsory but on a voluntary basis, which will restrain invaders by any means that may prove necessary.

I insist that there is nothing sacred in the life of an invader, and there is no valid principle of human society that forbids the invaded to protect themselves in whatever way they can.