During the time of the Delian League, conflicts occurred between Athens and Corinth. However, the Corinthians still sent a supreme magistrate each year. Potidaea was inevitably involved in all of the conflicts between Athens and Corinth. The people revolted against the Athenians in 432 BC, and it was besieged at the beginning of the Peloponnesian War and taken in the Battle of Potidaea in 430 BC.