Although Kant argues that a world republic with coercive public law is the only rational way to secure a lawful cosmopolitan condition, he states that it is an unachievable ideal, and he proposes a voluntary, non-coercive federation of states as a substitute. While some scholars have criticized Kant for moving away from this ideal due merely to pragmatic considerations, I argue that his rejection of a coercive world republic is based on his conception of state sovereignty and what is required (...) for a lawful condition. I consider how we can institutionalize a lawful condition between states without a coercive world republic in ways that go beyond Kant’s voluntary federation. I also consider how we can resolve this dilemma in Kant’s account to support a federal world republic. (Published online first on June 16, 2014). (shrink)