This article analyses the role of the African Union (AU) during the Libyan crisis of 2011. It addresses the question of why the AU has not played a central conflict manager role in that crisis. Inspired by pragmatic eclecticism, we take a theoretical detour to answer this question. Through a neoclassical realist and post-structuralist lens, we provide a novel eclectic reconsideration of the crisis response and we also highlight shared ground between both perspectives. Our theoretical and empirical discussion moves along the categories ‘primacy of power’, ‘discourses’ and ‘leader images’. We highlight the ability of dominant powers to influence the unfolding of events with material forms of power but also through immaterial ones such as the advancement of a dominant discourse on a cosmopolitan liberal order related to the responsibility-to-protect.