How do warlords survive and even thrive in contexts that are explicitly set up to undermine them? How do they rise after each fall? answers these questions. Drawing on hundreds of in-depth interviews in Afghanistan between 2007 and 2018, with ministers, governors, a former vice-president, warlords and their entourages, opposition leaders, diplomats, NGO workers, and local journalists and researchers, Romain Malejacq provides a full investigation of how warlords adapt and explains why weak states like Afghanistan allow it to happen.