The book addresses languages, conflict, and war in the post-Soviet states of Ukraine, Georgia, the Baltics, and Russia’s North Caucasus, emphasizing the pivotal role of language in forming national identity in multilingual states in the context of imperialism and warfare. Bifurcating allegiance to the national language group and minority language groups is found to be a challenging endeavor, and these efforts have served to deepen conflicts and marginalization. The study highlights how language attitudes and language policies have been used to articulate dominance and justify aggression in wars, the Russo-Ukrainian conflict being a stark case. Languages under occupation and in forced displacement are found to be subjected to pressures of assimilation and erasure. Language communities, on the other hand, react with diverse strategies of resilience and alternative paths to revitalization. Exposing war-torn settings, the authors enhance the prowess of decolonial and participatory research approaches and promoting more research on language and diasporas, language transmission, and processes of sociolinguistic migration and conflict. The book underlines the imperativeness of reflexive and ethically sound research that places voices and experiences of affected groups at the center of understanding the complex intersectionalities of language, power, resistance, and conflict.