ORDER OF BATTLE // -51 BCE
Battle of Gergovia
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
2 sides catalogued · combined 50,000–75,000 estimated
Roman Republic
20,000–45,000
Medium-confidence figure
Gallic tribes
30,000
Medium-confidence figure
Battle context
The Battle of Gergovia, fought in 52 BC at the chief oppidum of the Arverni in Gaul, was a defeat for the Roman Republican forces under Julius Caesar during the Gallic War. It stands as one of the rare setbacks Caesar's armies suffered during the broader conquest of Gaul, and it demonstrated that Vercingetorix, the Arverni chieftain who had united a significant coalition of Gallic tribes, was capable of holding Roman forces at bay and forcing them to withdraw. A Roman attempt to besiege the stronghold collapsed when miscommunication among the Roman forces undermined the operation, allowing the Gallic defenders to seize the initiative. The outcome bolstered Gallic resistance and reinforced Vercingetorix's standing as a credible military leader against Roman expansion in the region.
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