Franco-Prussian War

Lore & Background

The Franco-Prussian War, also called the Franco-German War or the War of 1870, was a conflict between France and the North German Confederation, led by Prussia. It lasted from July 1870 to January 1871. The war was primarily caused by France’s determination to reassert its dominant position in continental Europe, which had been challenged by Prussia’s decisive victory over Austria in 1866. The immediate trigger was a diplomatic crisis over the Spanish throne, which had been offered to Prince Leopold of Hohenzollern. After Leopold withdrew his acceptance, the French ambassador demanded that Prussian King Wilhelm I renounce any future claims, which Wilhelm rejected. Prussian chancellor Otto von Bismarck then made the internal Ems dispatch public with altered wording, inflaming French public opinion. French newspapers on July 14, the French national holiday, carried translations of Bismarck’s press release, and crowds in Paris demanded war. France mobilized its army on July 15, and the North German Confederation responded with its own mobilization that same day. The French parliament voted to declare war on July 16, and France invaded German territory on August 2. The German coalition mobilized more effectively, invading northeastern France on August 4. German forces were superior in numbers, training, and leadership, making more effective use of modern technology, particularly railways and artillery. A series of Prussian and German victories in eastern France, culminating in the Siege of Metz and the Battle of Sedan, led to the capture of French Emperor Napoleon III and the defeat of the Second Empire’s army. A Government of National Defense formed in Paris on September 4 and continued the war for five more months. German forces defeated new French armies in the north and besieged Paris for over four months before it fell on January 28, 1871, effectively ending the war. In the final days, the German states proclaimed their union as the German Empire under King Wilhelm I and Chancellor Bismarck, uniting most German-speakers for the first time, except Austria and German Switzerland. The Treaty of Frankfurt, signed on May 10, 1871, gave Germany a large war indemnity and most of Alsace and parts of Lorraine, forming the Imperial Territory of Alsace-Lorraine. The war hastened German unification, altering the European balance of power by supplanting France as the do

Reader's Guide

The Franco-Prussian 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, the war 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 that seized and held power for two months before its suppression, influencing the politics and policies of the Third Republic.

Did You Know?

• German forces were superior in numbers, training, and leadership and made more effective use of modern technology, particularly railways and artillery.
• According to some historians, Otto von Bismarck deliberately provoked the French into declaring war to induce four southern German states to join the North German Confederation.