This pamphlet first discusses cosmopolitan morality, that is the morality of both interpersonal behaviour and that of states towards persons. It then considers at greater length the morality of the behaviour of states towards each other. Within that subject it concentrates, as does much recent literature, on the coercive intervention by one state, or a coalition of states, in the affairs of another. More concisely, it concentrates on the morality of going to war.
