 In consequence of its geographical position and its fortifications, Oreus became an important place in the subsequent wars.In the contest between Antigonus I Monophthalmus and Cassander it was besieged by the latter, who was, however, obliged to retire upon the approach of Ptolemy, the general of Antigonus.In the First Macedonian War between the Romans and Philip V of Macedon, it was betrayed to the former by the commander of the Macedonian garrison in 207 BCE.