This chapter explores the ‘forgetting’ of the region as a unique form of public amnesia and the implications of this for conflict transformation. While conflict is often understood on multiple levels, including its regional dimension, peacebuilding and memory work are rarely put in conversation at this level. The chapter explores regional dimensions of memory and argues that these open up a novel and analytically productive lens on the nature and legacy of cross-border conflict and can bolster peacebuilding approaches. Taking the key case study of the Great Lakes Region of Africa, and specifically the regionalising dimensions of the Rwandan genocide, the chapter investigates the impact of two very different regional dimensions of memory on social cohesion. First, it considers the more intuitive ways in which grievances that extend across borders and fractured regional memories continue to fuel conflict. Second, and pushing beyond this, it considers the ways in which the returning diaspora deploys memory born in the wider region in attempts at nation-building. The chapter thus deploys a dynamic approach to memory, exploring mobile memories and the ways in which regional experiences are carried and deployed back in a national context. Overall, it urges us to extend the regional lens beyond the study of the roots of conflict and operational action to the study of post-conflict peacebuilding and commemoration.