Why do some geographical locales experience higher levels of violent mobilization during armed conflicts than others? Existing studies on high-risk mobilization examined economic greed and ethno-nationalist grievances, as well as incentives- and sanctions-based motivations to fight in civil wars. In order to explain violent mobilization beyond the extant theories of participation in civil wars, this article borrows from ethnography, psychology, and anthropology the previously unexplored in security studies concept of "belonging" to a locality. Drawing its empirical insights from unique interview data on mass wartime mobilization, which occurred between March and September 2014 in Ukraine, this study argues that belonging to a particular locale serves as a robust cause of violent mobilization. Using a rare sample of former and active members of pro-government paramilitary battalions from one carefully selected locality in Kyiv, reveals that individuals engaged in high-risk mobilization in the East Ukraine's conflict were influenced by the sense of belonging more than by political or ethnic grievances.
