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Franco-Prussian War facts for kids

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Franco-Prussian War
Part of the wars of German unification
Franco-Prussian War Collage.jpg
(clockwise from top right)
  • Battle of Mars-la-Tour, 16 August 1870
  • The Lauenburg 9th Jäger Battalion at Gravelotte
  • The Last Cartridges
  • The Defense of Champigny
  • The Siege of Paris in 1870
  • The Proclamation of the German Empire
Date 19 July 1870 – 28 January 1871
(6 months, 1 week and 2 days)

German victory, Treaty of Frankfurt

  • Fall of the Second French Empire
  • Formation of the French Third Republic
  • Beginning of Franco-German enmity
Flag of Baden 1862.svg Baden
Flagge Königreich Württemberg.svg Württemberg
Second French Empire French Empirea
 German Empirec

French Third Republic French Republicb

  • Foreign volunteers
Commanders and leaders
  • Flag of the Kingdom of Prussia (1803-1892).svg William I
  • Flag of the Kingdom of Prussia (1803-1892).svg Otto von Bismarck
  • Flag of the Kingdom of Prussia (1803-1892).svg Helmuth von Moltke
  • Flag of the Kingdom of Prussia (1803-1892).svg Crown Prince Friedrich
  • Flag of the Kingdom of Prussia (1803-1892).svg Prince Friedrich Karl
  • Flag of the Kingdom of Prussia (1803-1892).svg Karl F. von Steinmetz
  • Flag of the Kingdom of Prussia (1803-1892).svg Albrecht von Roon

Total deployment:

  • 1,494,412


  • 938,424
  • 730,274 regulars and reservists
  • 208,150 Landwehr

Peak field army strength:

  • 949,337

Total deployment:

  • 2,000,740


  • 909,951
  • 492,585 active, including 300,000 reservists
  • 417,366 Garde Mobile

Peak field army strength:

  • 710,000
Casualties and losses


  • 44,700 dead
  • 89,732 wounded
  • 10,129 missing or captured


  • 138,871 dead
  • 143,000 wounded
  • 474,414 captured or interned
~250,000 civilians dead, including 162,000 Germans killed in a smallpox epidemic spread by French POWs
  • a Until 4 September 1870.
  • b From 4 September 1870.
  • c From 18 January 1871.

The Franco-Prussian War was a war between France and Prussia. Some German allies of Prussia also joined. This war was provoked by Otto Von Bismarck, the Prussian Chancellor. He wanted to unite Germans by making them fight together against a common enemy. Bismarck did this by irritating the Emperor of France, Louis-Napoléon Bonaparte (Napoleon III). The war started when France declared war on 19 July 1870. It ended on 10 May 1871. Prussia won.


The causes of the Franco-Prussian War are mostly due to France being apprehensive of a Protestant country on their border. France had helped Prussia beat Austria in the Austro-Prussian War (1866), but would not let the North German Confederation and South German states unify. In 1869, the throne of Spain was offered to a prince of the Catholic branch of the Prussian Hohenzollern royal family.

France found out about the offer, and demanded that Prussia reject it, since France did not want to be surrounded by Hohenzollerns. The prince said no, but the French wanted Prussia to say no also. The Prussian King Wilhelm I sent the Ems telegram assuring the French Emperor, Napoleon III, that the prince would not become king of Spain. Otto von Bismarck, the Chancellor of Prussia, publicly released a version that he edited or doctored to make it seem that his king had insulted the emperor's ambassador. This was part of his plan to unify the German states. The two sides exchanged angry words, France declared war, and on July 19 1870 the war started. Prussia was fully supported by the South German states.


Die Gartenlaube (1883) b 553
Germans built this statue in 1883 to warn the French

With her German allies and universal conscription, Prussia was able to bring together a bigger army than the French. The Prussian army's weapons, training and leadership were better, too. For example, the Prussian General Staff were very well organized. The army had some old-fashioned equipment like the Dreyse needle gun but their Krupp mobile artillery (heavy-duty guns) were far better than the old French muzzleloaders. Notable victories include Sedan, Mars-la-Tour, Gravellote, and Metz. They captured Napoleon in Metz. French Republicans overthrew the Second French Empire and continued the war for a few months. After the Germans conquered Paris they made peace.

After this war, France had to give Prussia some mainly German speaking regions previously under French control. These were the provinces of Alsace and Lorraine. Prussia took steps to unite the independent German states into one country, the German Empire. The historical term for this is the Unification of Germany.

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