 One could, of course, accept a universalist, Kantian account of state authority, but supplement that account with subsidiary principles, which help to define the boundaries of particular authorities. But if those subsidiary principles are more than principles of convenience or affirmations of the status quo, both of which are problematic, then it means that Kant’s theory can’t be a stand-alone successful account, but has to be hybridized with another account. This is because Kant’s theory provides a successful justification for state authority but needs another account to justify each state’s particular territory.