This collected volume offers an original perspective on the Baltic region by examining the intricate relationships between its diverse ethnic groups from the mid-nineteenth century to the present. Rather than focusing solely on national narratives or comparisons of historical development, the book analyzes ethnic relations through the lenses of identity, governance, empire, and violence. The nearly constant redrawing of geographic borders and boundaries among communities during this period destabilized fixed identities, generating novel, hybrid ways of self-identification along with a hardening of oppositions. Innovative forms of coexistence came with violent, sometimes genocidal conflicts. The contributors explore topics such as evolving senses of belonging, the impact of imperial and Soviet rule, instances of cooperation and conflict, and the legacies of historical trauma. By incorporating new sources and interdisciplinary approaches, they update traditional understandings of nations and nationalism in the Baltic region and provide insights relevant to similar regions.