Political obligation refers to the idea that there is a duty to obey the law as well as to support one’s state in a number of other ways—for example, by promoting its interests, by defending it when attacked, by voting, and, more generally, by being an active citizen. These duties can be very demanding and seriously interfere with one’s capacity to autonomously choose how to lead one’s life. As such, their existence deserves close scrutiny.
The main attempts to justify the existence of political obligation appeal to the ideas of consent, fair play, gratitude, natural duties of justice, and associative obligations. Each of these theories is shown to struggle either with underinclusiveness or with overinclusiveness. It is normally thought that all and only the citizens of a given state have a duty to obey its laws and support its political institutions, but none of the classic theories seem to be able to justify a duty of this kind. In light of this, two responses are available: one is to give up the idea that there is political obligation, thereby becoming a “philosophical anarchist”; the other is to revise the traditional understanding of political obligation.