Book excerpt: Gotham at War: New York City, 1860-1865 is a concise, highly readable account of New York City during the greatest internal crisis in American history. A growing metropolis that was by far America's biggest and most powerful city, New York played a major role in the Civil War, mobilizing an enthusiastic though poorly trained military force during the first month of the war that helped protect Washington, D.C., from Confederate capture. Urban historian Edward K. Spann provides insights on both the varied ways in which the war affected the city and the ways in which the city's people and industry influenced the divided nation. Gotham at War includes observations regarding political, racial, ethnic, and economic aspects of this wartime society and shows how New York served as a center for manpower, military supplies, and shipbuilding, and for assisting sick and wounded soldiers. The efforts of its great Republican newspapers, local leaders such as William E. Dodge and Mayor George Opdyke, women, African-Americans, New Englanders, and the Irish and Germans of New York are all explored. The most southern of the northern cities, New York became a center for many citizens who opposed th