The Franco-Prussian War of 1870-71 violently changed the course of European History. Alarmed by Bismarck's territorial ambitions and the Prussian army's crushing defeats of Denmark in 1864 and Austria in 1866, French Emperor Napoleon III vowed to bring Prussia to heel. Digging into many European and American archives for the first time, Geoffrey Wawro's Franco-Prussian War describes the war that followed in thrilling detail. While the armies mobilized...