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BATTLE // September 1, 1870

Battle of Sedan

Cartographic map of the Battle of Sedan
Edward Stanford Ltd., via Wikimedia Commons · Public domain

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Overview

The Battle of Sedan, also known as First Battle of Sedan was fought during the Franco-Prussian War from 1 to 2 September 1870. Resulting in the capture of Emperor Napoleon III and over a hundred thousand troops, it effectively decided the war in favour of Prussia and its allies, though fighting continued under a new French government.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Significance

The Battle of Sedan on 1–2 September 1870 resulted in the capture of Emperor Napoleon III and over a hundred thousand French troops, a defeat of such scale that it effectively decided the Franco-Prussian War in favor of Prussia and its allies. The loss of the emperor himself destroyed the political foundation of the Second French Empire. Despite this decisive outcome, fighting continued after a new French government was established, prolonging the war beyond Sedan's immediate consequences. The engagement stands as the pivotal moment of the conflict: no subsequent French military effort could recover the strategic position lost when an entire army and its sovereign commander were taken from the field.

Forces & casualties

Troop strength

  • North German Confederation200,000
    medium
  • France120,000–130,000
    medium

North German Confederation fielded a 1.6 : 1 numerical advantage

Casualties

  • North German Confederation1,310
    medium1% loss rate
  • France3,220
    medium3% loss rate

Commanders (11)

France

North German Confederation

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6 sibling battles · 3 factions

Last verified May 2026
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