This paper examines the renaissance of the city as a global actor within the context of 'the relationship between international law, international actorhood, and the political practice of foreign policy'. First, it discusses briefly the city as a global actor from a historical sociological perspective. It goes on to consider three contemporary developments -globalisation, urbanisation, and decentralisation -that impact the position of the city within the international society today.

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... , the focus is on how cities are (re)constituted as global actors by making use of the language, norms and practices of foreign policy and international law. In turn, as global actors, cities reconstitute the global society and its ideational, normative structure. A social constructivist approach is used here to explain both constitutive processes. The current urban renaissance challenges traditional state-centrism of the IR/lL theories describing the world. The editors of this volume have posed the research question as to whether we face 'a moment of foreign policy transformation'; this chapter suggests we do. The renaissance of the city as an independent global actor attests to a more general shift from an international to a global society. Meanwhile, the (re-)constitution of the city as new foreign policy actor shows the persuasive power and constructive role of international legal norms and ideas today.