Justice and Foreign Policy

What principles of justice ought to restrain a liberal state in its dealings with other state? This book defends the idea that a liberal state can act justly abroad, without abandoning either the idea that it has some specific duties to only its own citizens, or the idea that liberal democracy is superior to illiberal forms of political organization. In the area of distributive justice, the book defends the idea that the liberal state is obliged to ensure certain forms of material equality amongst its own citizens, because of the coercive powers the state presumes the right to deploy.