The question whether external actors have a right of intervention within a sovereign state which is committing grave violations of human rights assumed particular significance in the case of the civil conflict that began in Libya in February 2011. Within the international response to the Libyan regime's attacks on its population, the Arab League, the United Nations and NATO favoured the use of military force, whereas the African Union favoured a political solution to the crisis. This article considers the question of African Union intervention within the framework of the concept of ‘responsibility to protect’. It argues that the reason why the African Union did not act militarily in Libya was that it lacks the will to confront incumbent leaders, something which undermines the organization's ability to provide effective solutions to African crises.