ORDER OF BATTLE // -428 BCE
Battle of Spartolos
Estimated force strength by side, with confidence labels per surviving record.
Forces engaged
2 sides catalogued · combined 7,000 estimated
Athens
2,000
Medium-confidence figure
Chalcidian League
5,000
Medium-confidence figure
Battle context
The Battle of Spartolos was fought in 429 BC between Athens and the Chalcidian League and their allies during the early phase of the Peloponnesian War. Athens committed a force of 2,000 against a Chalcidian League force of 5,000, reflecting a significant numerical disparity. The engagement occurred in the context of Athenian efforts to project power in the northern Aegean theater, where the Chalcidian League represented a persistent challenge to Athenian strategic interests. Beyond establishing that the battle took place in this period and involved these belligerents, the available record does not detail its operational consequences or the outcome.
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