Theophiliscus, the vigilant -strategus- of Rhodes, exhorted his citizens to meet the common danger by common resistance, and not to suffer the towns and islands to become one by one a prey to the enemy.

Rhodes resolved on its course, and declared war against Philip.

Byzantium joined it; as did also the aged Attalus king of Pergamus, personally and politically the enemy of Philip.
While the fleet of the allies was mustering on the Aeolian coast, Philip directed a portion of his fleet to take Chios and Samos.

With the other portion he appeared in person before Pergamus, which however he invested in vain; he had to content himself with traversing the level country and leaving the traces of Macedonian valour on the temples which he destroyed far and wide.

Suddenly he departed and re-embarked, to unite with his squadron which was at Samos.