German Unification

In January 1871, the German Empire was proclaimed in the Hall of Mirrors at Versailles, bringing most of the German-speaking states of central Europe under a single national government for the first time. The new state, dominated by Prussia, quickly became the strongest power on the European continent. Its creation upset the balance of power that had held since the Congress of Vienna in 1815 and shaped the politics of Europe for the next seventy years.

Before unification, the German lands were divided among the states of the German Confederation, a loose association of 39 members created in 1815 after the Napoleonic Wars. Austria and Prussia were its leading powers. Nationalist and liberal movements had pressed for a unified Germany, and the revolutions of 1848 produced an elected assembly in Frankfurt that offered a crown to the Prussian king, who refused it. Economic ties pointed the same way: the Prussian-led customs union, the Zollverein, tied many states into a common market and excluded Austria.

The key figure was Otto von Bismarck, who became Prussian minister-president in 1862. Rather than relying on liberal idealism, he pursued unification through diplomacy and a series of short wars. In 1864 Prussia and Austria together defeated Denmark over Schleswig and Holstein. In 1866 Prussia defeated Austria in the Austro-Prussian War, dissolving the old Confederation and creating a North German Confederation under Prussian leadership. Austria was excluded from German affairs. The southern states, such as Bavaria and Württemberg, remained nominally independent but were bound to Prussia by military agreements.

The final step came with the Franco-Prussian War of 1870–71. Bismarck's editing of the Ems telegram, a report of a meeting between the Prussian king and the French ambassador, helped inflame French opinion, and France declared war. German forces, fighting together, won decisive victories, including the capture of Napoleon III at Sedan. With national feeling running high, the southern states agreed to join, and Wilhelm I of Prussia was proclaimed German Emperor in January 1871. France was forced to cede Alsace and most of Lorraine, a loss that left lasting bitterness.

The new empire combined an elected Reichstag with strong powers for the emperor, the chancellor, and the Prussian establishment. It industrialized rapidly and became a leading economic and military power. Bismarck spent his later years as chancellor building alliances to keep France isolated and preserve peace. After his dismissal in 1890, that system gradually unraveled. Historians continue to debate how directly the empire's rise and rivalries led to the First World War, but there is little doubt that German unification permanently redrew the map and power structure of Europe.