1870 – 1871
The Franco-Prussian War was one of the most consequential conflicts in modern history — a war that lasted less than a year yet reshaped the world for the next century. Bismarck engineered it deliberately, manipulating France into declaring war so that the south German states would rally to Prussia, completing German unification under Prussian leadership. Moltke's armies destroyed two entire French forces in six weeks — capturing Napoleon III himself at Sedan — and then besieged Paris for four months while the Government of National Defense raised new armies that could not break through. The German Empire was proclaimed in the Hall of Mirrors at Versailles on January 18, 1871, while the French capital starved outside. The peace stripped France of Alsace-Lorraine and imposed a five-billion-franc indemnity — wounds so deep they would fester for forty-four years until France had its revenge on the Western Front. In Paris, the humiliation of defeat and the social tensions of the siege exploded into the Paris Commune, the most radical revolutionary government in French history, crushed by the new French Republic in a week of street fighting so bloody it killed more Parisians than the Terror.
Chapter-by-chapter narrative with maps, primary sources, and key events.
Explore battles on a live map with a timeline slider and territory overlays.
Deep-dive into every major engagement — commanders, casualties, significance.
Biographical flip cards with real portraits, facts, and full biography pages.
Trace each figure's full life journey — birth, education, battles, and death — on a live map.
Scroll-driven visualization of casualties — each dot a thousand lives.
Weapons, war machines, and the military innovations that defined how this conflict was fought.
Cause-and-effect chains tracing the war's long shadow on history.
War crimes, massacres, and the darkest chapters of this conflict — documented for history.
The Franco-Prussian War was one of the most consequential conflicts in modern history — a war that lasted less than a year yet reshaped the world for the next century. Bismarck engineered it deliberately, manipulating France into declaring war so that the south German states would rally to Prussia, completing German unification under Prussian leadership. Moltke's armies destroyed two entire French forces in six weeks — capturing Napoleon III himself at Sedan — and then besieged Paris for four months while the Government of National Defense raised new armies that could not break through. The German Empire was proclaimed in the Hall of Mirrors at Versailles on January 18, 1871, while the French capital starved outside. The peace stripped France of Alsace-Lorraine and imposed a five-billion-franc indemnity — wounds so deep they would fester for forty-four years until France had its revenge on the Western Front. In Paris, the humiliation of defeat and the social tensions of the siege exploded into the Paris Commune, the most radical revolutionary government in French history, crushed by the new French Republic in a week of street fighting so bloody it killed more Parisians than the Terror.
The Franco-Prussian War was fought from 1870 to 1871.
The Franco-Prussian War was fought between German States (Prussia & Allies) and France (Second Empire / Third Republic).
An estimated 239,000 people died in The Franco-Prussian War, including roughly 182,000 military and 57,000 civilian deaths. Figures are scholarly estimates and vary by source.
Major engagements included Siege and Surrender of Metz, Siege of Paris, Battle of Sedan, and Battle of Gravelotte–St. Privat.