in the west. Cersebleptes was the most ambitious of the three. He continued his father's war against Athens for the Chersonese, while also striving to reunite the Odrysian kingdom. His attempts proved futile, for Amadocus II and Berisades, who received support from Athens, resisted his attacks. In 357 he was forced to accept a peace treaty that sealed the division of the Odrysian state. An inscription from Athens describes said treaty. First, Cersebleptes had to cease his hostilities in the Cheresonese. Second, all three kings and Athens agreed to share their tributes received from the Greek colonies along the Aegean and the Hellespont. Third, the kings promised to enter an alliance with Athens and both sides had to provide each other with military support if tributary Greek colonies revolted. Cersebleptes, however, soon quit that treaty and continued his war in the Chersonese. Conquest by Philip II As early as 359, the year of his coronation, Philip II of Macedon I contacted a "Thracian king" to persuade him to not harbour a Macedonian pretender to the throne. This king is probably to be identified with the western Odrysian king Berisades. A year later he unified Macedon and subjugated the Paeonians to the northeast. In these early years he did not bother much with Thrace yet, as he regarded the infighting Odrysian kingdoms as no threat for his rule. A first push into the kingdom of Berisades and his successor Cetriporis occurred in 357/6, when he conquered Amphipolis and Crenides. The latter was made into a garrison town called Philippi that was to serve as a launch pad for future invasions into the interior. Cetriporis allied himself with the kings of Paeonia and Illyria, but Philip II defeated them one by one. Cetriporis was allowed to keep his kingdom, at least for a few more years. Cersebleptes continued his attempts to unite the Odrysian kingdoms: in 353/4 he and Philip discussed the invasion of the kingdom of Amadocus II and the Athenian domains in Thrace, while around a year later he marched against the kingdom of Cetriporis. Meanwhile, Athens feared a possible alliance between Philip and Cersebleptes and decided to make an example by conquering the town of Sestos and eradicating its population. Intimidated, Cersebleptes renounced his claims on much of the Chersonese and allied with Athens. This was unacceptable for Philip, who allied with Amadocus II and marched against Cersebleptes. After