title: ¿Cómo se define el liderazgo en la defensa europea? Un análisis fsQCA
abstract: The paper addresses the issue of national leadership in the politics of European defence, in order to determine the relative value of different factors in the exercise of leadership, and the reasons why some countries are more willing than others to contribute to the development of the EU’s Common Security and Defence Policy. The article starts by discussing the main contributions of the (neo)realist and constructivist approaches to European leadership on defence. It then highlights the process 
journal: Revista de Estudios Políticos