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ORDER OF BATTLE // May 13, 1940

Battle of Sedan

Estimated force strength by side, with confidence labels per surviving record.

Forces engaged

2 sides catalogued · combined 80,000 estimated

  • France

    20,000

    Medium-confidence figure

  • Germany

    60,000

    Medium-confidence figure

Battle context

The Battle of Sedan was fought during the Franco-Prussian War on 1–2 September 1870. The engagement resulted in the capture of Emperor Napoleon III and more than one hundred thousand French troops, a catastrophic loss that effectively decided the war in favor of Prussia and its allies. Although fighting continued after the battle under a new French government, the fall of Napoleon III removed the imperial leadership and stripped France of its principal field force. No comparable blow to French strategic capacity occurred elsewhere in the war, making Sedan the decisive action of the conflict.

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Last verified June 2026
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