It was no coincidence that the Civil War occurred during an age of violent political upheaval in Europe and the Americas. Grounding the causes and philosophies of the Civil War in an international context, Andre M. Fleche examines how questions of national self-determination, race, class, and labor the world over influenced American interpretations of the strains on the Union and the growing differences between North and South. Setting familiar events in an international context, Fleche enlarges our understanding of nationalism in the nineteenth century, with startling implications for our understanding of the Civil War.