Based on ethnographic fieldwork, this article is concerned with how undocumented refugees and migrants use invisibility strategies to navigate a hostile host environment in Western Tanzania. This article explores how the shifts in Tanzania’s refugee policy have affected different generations of refugees differently, and how older cohorts assist newer cohorts. This article argues that the challenges of migration are productive of ‘affective circuits’ and of generating new forms of kinship. It argues that it can be productive to bring together the different understandings of generations, as it was found that generations as cohorts can transform into generations as kin in situations of rupture and adversity.