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BATTLE // July 4, 1866

Engagement at Dermbach

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Overview

The Battle of Dermbach was the first clash between Prussian and Bavarian troops in the Austro-Prussian War near Dermbach, Saxe-Weimar-Eisenach in modern-day Thuringia on 4 July 1866.

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

Significance

The engagement at Dermbach marked the first direct clash between Prussian and Bavarian forces in the Austro-Prussian War, opening the campaign on the Bavarian front in Thuringia. A Prussian force of roughly 5,000 inflicted approximately 5,100 casualties on a Bavarian force three times its size, demonstrating an early and decisive Prussian tactical advantage against one of Austria's principal German allies. The result established Prussian operational momentum in the region at the outset of fighting against the South German states.

Forces & casualties

Troop strength

  • Prussia5,000
    medium
  • Bavaria15,000
    medium

Bavaria fielded a 3.0 : 1 numerical advantage

Casualties

  • Bavaria5,100
    medium34% loss rate

Commanders (4)

Bavaria

Prussia

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Last verified June 2026
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