Paradiplomacy: Cities and States as Global PlayersOrthodox international relations theory considers foreign affairs to be the exclusive purview of national governments. Yet as Rodrigo Tavares demonstrates, the vast majority of leading sub states and cities are currently practicing foreign affairs, both bilaterally and multilaterally. Subnational governments in Asia, the Americas, Europe and Africa are changing traditional notions of sovereignty, diplomacy, and foreign policy as they carry out