An influential interpretation of Kant’s Doctrine of Right suggests that the relationship between public right and freedom is constitutive rather than instrumental. The focus has been on domestic right and members’ relations to their own state. This has resulted in a statist bias which has not adequately dealt with the fact that Kant regards public right as a system composed of three levels – domestic, international and cosmopolitan right. This article suggests that the constitutive relationship is between all levels of right, on the one hand, and ‘freedom in the external relation’ of all human beings, on the other hand.

The two standard interpretations of Kant’s view of the relationship between external freedom and public law make one of the terms a means for the production of the other: either public law is justified as a means to external freedom, or external freedom is justified as a means for producing a system of public law. This article defends an alternative, constitutive interpretation: public law is justified because it is partly constitutive of external freedom. The constitutive view requires conceiving of external freedom in a novel, second-personal way, that is, as an irreducibly relational norm.