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Franco-Prussian War

The Franco-Prussian War or Franco-German War,[b] often referred to in France as the War of 1870, was a conflict between the Second French Empire and the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 January 1871, the conflict was caused primarily by France's determination to reassert its dominant position in continental Europe, which appeared in question following the decisive Prussian victory over Austria in 1866.[12] According to some historians, Prussian chancellor Otto von Bismarck deliberately provoked the French into declaring war on Prussia in order to induce four independent southern German states—Baden, Württemberg, Bavaria and Hesse-Darmstadt—to join the North German Confederation; other historians contend that Bismarck exploited the circumstances as they unfolded. All agree that Bismarck recognized the potential for new German alliances, given the situation as a whole.[13]

"Franco-German war" redirects here. For the war between Lothair and Otto II, see Franco-German war of 978–980.

France mobilised its army on 15 July 1870, leading the North German Confederation to respond with its own mobilisation later that day. On 16 July 1870, the French parliament voted to declare war on Prussia; France invaded German territory on 2 August. The German coalition mobilised its troops much more effectively than the French and invaded northeastern France on 4 August. German forces were superior in numbers, training, and leadership and made more effective use of modern technology, particularly railways and artillery.


A series of hard fought Prussian and German victories in eastern France, culminating in the Siege of Metz and the Battle of Sedan, resulted in the capture of the French Emperor Napoleon III and the decisive defeat of the army of the Second Empire; a Government of National Defense was formed in Paris on 4 September and continued the war for another five months. German forces fought and defeated new French armies in northern France, then besieged Paris for over four months before it fell on 28 January 1871, effectively ending the war.


In the final days of the war, with German victory all but assured, the German states proclaimed their union as the German Empire under the Prussian king Wilhelm I and Chancellor Bismarck. With the notable exceptions of Austria and German Switzerland, the vast majority of German-speakers were united under a nation-state for the first time. Following an armistice with France, the Treaty of Frankfurt was signed on 10 May 1871, giving Germany billions of francs in war indemnity, as well as most of Alsace and parts of Lorraine, which became the Imperial Territory of Alsace-Lorraine (Reichsland Elsaß-Lothringen).


The war had a lasting impact on Europe. By hastening German unification, the war significantly altered the balance of power on the continent, with the new German state supplanting France as the dominant European land power. Bismarck maintained great authority in international affairs for two decades, developing a reputation for Realpolitik that raised Germany's global stature and influence. In France, it brought a final end to imperial rule and began the first lasting republican government. Resentment over the French government's handling of the war and its aftermath triggered the Paris Commune, a revolutionary uprising which seized and held power for two months before its bloody suppression; the event would influence the politics and policies of the Third Republic.

War crimes[edit]

The Franco-Prussian War of 1870–71 resulted in numerous war crimes committed by the Prussian army . One notable war crime committed during the conflict was the execution of prisoners of war. Reports indicate that several hundred French prisoners were summarily executed by Prussian soldiers. This included the execution of a group of over 200 French soldiers at the village of Dornach, which was subsequently referred to as the "Dornach atrocities".[104]


Prussian soldiers were also accused of committing acts of violence against civilians, including murder, rape, and the destruction of property.[105]

Belgium and the Franco-Prussian War

British ambulances in the Franco-Prussian War

Foreign relations of Germany

French–German enmity

History of French foreign relations

International relations of the Great Powers (1814–1919)

List of Franco-Prussian War films

Crimes de la commune

(in French)

La guerre de 1870–71 en images

"Caricatures of the Franco-Prussian War and the Paris Commune (1870–71)": and story, Cambridge University Library

Virtual exhibition

(Cambridge University Library)

Collection de caricatures et de charges pour servir à l'histoire de la guerre et de la révolution de 1870–1871

(Heidelberg University Library)

Collection de caricatures et de charges pour servir à l'histoire de la guerre et de la révolution de 1870–1871

Texts and documents about German–French relations and an essay on the Franco-German war

Information and maps on the battles of Wissembourg, Woerth and Gravelotte