This article offers a new perspective on the failed states agenda, and the reconfiguration of colonial discourse buttressing it, by theorising its afterlives. The concept of afterlives has mostly been discussed as a metaphor or in passing in the IR literature. Drawing from the post- and decolonial literature, we propose to define the concept simultaneously as echoes and aftermaths of the past. This conceptualisation of afterlives aims to contribute to the study of the persistence of colonial forms beyond notions of continuity and rupture. We develop the concept of afterlives through a discussion of the failed states agenda and its iterations. We discuss four specific iterations of the agenda: the genesis of the agenda in the decolonisation period; the consolidation of the agenda during the early 1990s; the crisis of the agenda and the rise of the resilience discussion; and finally the rise of the fragile city agenda as one of the afterlives of the failed states agenda. To illustrate our argument, we discuss two specific ‘fragments’ through which we can effectively grasp the echoes and aftermaths of coloniality: the pathologisation of fragile states and cities, operated through various twin figures (civilised/barbaric; strong/dysfunctional; resilient/vulnerable) and their practical repercussions; and the visualisation, mapping and colour-coding of fragile states and cities, exemplifying the durability and contradictions of the failed states agenda.