Greece Alexander, Antigonus II's nephew and regent, leads a revolt in Corinth with Ptolemy II's help and declares himself an independent monarch. As a result, Antigonus loses Corinth and Chalcis, the two bases from which he has dominated southern Greece. As the Aetolians occupy Thermopylae, Antigonus II is cut off from Athens and the Peloponnese. Macedonia's involvement in the second Syrian War ceases when Antigonus becomes preoccupied with the rebellion of Corinth and Chalcis, as well as an increase in enemy activity along Macedon's northern frontier.
Greece Alexander, Antigonus II's nephew and regent, leads a revolt in Corinth with Ptolemy II's help and declares himself an independent monarch. As a result Antigonus loses Corinth and Chalcis, the two bases from which he has dominated southern Greece. As the Aetolians occupy Thermopylae, Ant,igonus II is cut off from Athens and the Peloponnese. Macedonia's involvement in the second Syrian War ceases when Antigonus becomes preoccupied with the rebellion of Corinth and Chalcis, as well as an increase in enemy activity along Macedon's northern frontier.