This article reviews the literature on nationalism and ethnic mobilization. I first discuss the different strands of research in the field, highlighting three key sources of division that characterize existing literature: geography, ethnic cleavage type, and strategy of mobilization. Arguing that the lack of dialogue between different niches of research can undermine the accumulation of general knowledge, I propose an integrated perspective on nationalism and ethnic mobilization that serves to assimilate findings from these separate niches. I conclude by discussing how such an integrated perspective can enhance our knowledge of the causes, dynamics, and consequences of ethnic mobilization.