Battle of Potidaea

The Battle of Potidaea was fought in 432 BC between Athens and a combined army from Corinth and Potidaea, along with their various allies. Along with the Battle of Sybota, it was one of the catalysts for the Peloponnesian War.

Potidaea was a colony of Corinth on the Chalcidice peninsula, but was a member of the Delian League and paid tribute to Athens. It was originally settled by Corinthians and still hosted Corinthian magistrates every year. After the Athenian defeat at Sybota, Athens demanded that Potidaea pull down part of its walls, stop accepting Corinthian magistrates and send hostages to Athens. Athens was afraid that Potidaea would revolt due to Corinthian or Macedonian influence, as Perdiccas II of Macedon was encouraging revolts among Athens' other allies in Thrace. Whether Potidaea was indeed launching an uprising, the Athenian demands precipitated the revolt. To ensure that its demands were carried out, Athens sent an expedition led by Archestratus within the Context of Corinthian and Macedonian hostility.

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