Strategies of unity within the Achaean League

The Achaean League successfully extended its membership to poleis who did not traditionally share any affinity with the Achaean ethnos. This occurred, against the current of traditional Greek political development, due to a fundamental restructuring of political power within the poleis of the Peloponnesus. Due to Hellenistic, and particularly Macedonian intervention, most Peloponnesian poleis were directed by tyrants who could make decisions based on their sole judgments. The Achaean League positioned itself to directly influence those tyrants. The League offered to maintain the tyrants within their poleis so long as they joined the League, or these tyrants faced relentless Achaean attacks and assassination attempts. Through the consent of this small tyrannical elite, the Achaean League grew to encompass most of the Peloponnesus.