 During his reign, he greatly increased the power of Syracuse.He removed the inhabitants of Naxos and Catania to Leontini, peopled Catania (which he renamed Aetna) with Dorians, concluded an alliance with Acragas (Agrigentum) and espoused the cause of the Locrians against Anaxilas, tyrant of Rhegium.His most important military achievement was the defeat of the Etruscans and Carthaginians at the Battle of Cumae (474 BC), by which he saved the Greeks of Campania from Etruscan domination.