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This article studies the mobilisations that have developed since the beginning of the Yemeni revolutionary process in January 2011. Built on shared and extensive fieldwork, it examines the interactions between emerging practices and the “structural properties of social systems”. It posits the duality of the revolutionary process that appears both produced its actors and constrained by a historical, social and political structure. This article thereby interrogates the capacity of the revolutionary event not only to generate innovations but also to emerge at the intersection between emerging practices and the reassertion of control over the process by existing mobilisation networks and institutionalised political actors.