ORDER OF BATTLE // September 25, 1805
Ulm Campaign
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
2 sides catalogued · combined 239,200–309,000 estimated
France
165,200–235,000
Medium-confidence figure
Austria
74,000
Medium-confidence figure
Battle context
The Ulm Campaign resulted in the encirclement and capture of approximately 60,000 Austrian troops under Karl Mack before Russian reinforcements could reach the theater, effectively eliminating the main Austrian field army in the Danube region during the War of the Third Coalition. With Austrian forces neutralized at Ulm, France gained freedom of operational movement deeper into Central Europe. The campaign is regarded by some military historians as a strategic masterpiece, and its large wheeling maneuver later influenced the development of the Schlieffen Plan in the late 19th century. French casualties of around 6,000 against Austrian losses of 10,000, combined with the capture of an entire army, made the result a lopsided operational success that shaped the subsequent course of the 1805 campaign.
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