"Gregory P. Downs argues that we can see the Civil War anew by understanding it as a revolution. More than a fight to preserve the Union and end slavery, the conflict refashioned a nation, in part by remaking its Constitution. More than a struggle of brother against brother, it entailed remaking an Atlantic world that centered in surprising ways on Cuba and Spain. Downs introduces a range of actors not often considered as central to the conflict but clearly engaged in broader questions and acts they regarded as revolutionary. This expansive canvas allows Downs to describe a broad and world-shaking war with implications far greater than often recognized"--