Thus, if such an attack is carried out on a citizen of a state by one of his fellow citizens or by a citizen of a state at peace with one's own state, then it is immoral and is absolutely contrary to right; but the attack is not absolutely immoral if it is carried out by an armed enemy, for in this case the warring states are engaged in dispute over what is right, and from the perspective of external right it is problematic which state is right.