The Aetolians’ power increasingly magnified with the occupation of the lands of Ozoloi, Locrians and Phocians, as well as Boeotia. They then united under the power of their League in the areas of Tegea, Mantinea, Orchomenus, Psophida and Phigaleia. Between 220 and 217 BC, the Social War broke out between the Achaean and Aetolian Leagues. The war was first started by the Aetolians with the help of the Spartans and Eleans. Allies of the Achaeans were the Macedonians, the Boeotians, the Phocians, the Epirotes, the Acarnanians and the Messenians.