Global Race War: International Politics and Racial Hierarchy explores the historical connections between race and violence from the nineteenth to the early twenty-first centuries. Barder shows how beginning with the Haitian Revolution and nineteenth century settler colonialism the development of the very idea of global order was based on racial hierarchy. The intensification of racial violence happened when the global racial hierarchy appeared to be in crisis. By the first half of the twentieth century, ideas about race war come to fuse themselves with state genocidal projects to eliminate internal and external enemy races. Global processes of racialization did not end with the Second World War and with the discrediting of scientific racism, the decolonization of the global South and the expansion of the state-system to newly independent states; rather it continued in different forms as the racialization of cultural or civilizational attributes that then resulted in further racial violence. From fears about the “Yellow Peril,” the “Clash of Civilization,” or, more recently, the “Great Replacement,” the global imaginary is constituted by ideas about racial difference. Examining global politics in terms of race and racial violence reveals a different spatial topology across domestic and global politics. Global histories of racial hierarchy and violence have important implications for understanding the continued salience of race within Western polities. The book revisits two centuries of international history to show the important consequences of a global racial imaginary that continues to reverberate across time and space.