§2.95.1ὑπὸ δὲ τοὺς αὐτοὺς χρόνους, τοῦ χειμῶνος τούτου ἀρχομένου, Σιτάλκης ὁ Τήρεω Ὀδρύσης Θρᾳκῶν βασιλεὺς ἐστράτευσεν ἐπὶ Περδίκκαν τὸν Ἀλεξάνδρου Μακεδονίας βασιλέα καὶ ἐπὶ Χαλκιδέας τοὺς ἐπὶ Θρᾴκης, δύο ὑποσχέσεις τὴν μὲν βουλόμενος ἀναπρᾶξαι, τὴν δὲ αὐτὸς ἀποδοῦναι.
About the same time, at the beginning of this winter, Sitalces, son of Teres, the Odrysian, king of the Thracians, made an expedition against Perdiccas, son of Alexander, king of Macedonia, and against the Chalcidians in Thrace; wishing to exact one of two promises, and himself to fulfill the other.
§2.95.2ὅ τε γὰρ Περδίκκας αὐτῷ ὑποσχόμενος, εἰ Ἀθηναίοις τε διαλλάξειεν ἑαυτὸν κατ’ ἀρχὰς τῷ πολέμῳ πιεζόμενον καὶ Φίλιππον τὸν ἀδελφὸν αὐτοῦ πολέμιον ὄντα μὴ καταγάγοι ἐπὶ βασιλείᾳ, ἃ ὑπεδέξατο οὐκ ἐπετέλει· τοῖς τε Ἀθηναίοις αὐτὸς ὡμολογήκει, ὅτε τὴν ξυμμαχίαν ἐποιεῖτο, τὸν ἐπὶ Θρᾴκης Χαλκιδικὸν πόλεμον καταλύσειν.
For Perdiccas, although he had promised Sitalces—on condition that Sitalces should reconcile him to the Athenians when he was hard pressed at the beginning of the war, and should not restore his hostile brother Philip to the throne—did not perform what he had undertaken; and Sitalces himself had promised the Athenians, when he made the alliance, that he would bring to an end the Chalcidian war in Thrace.
§2.95.3ἀμφοτέρων οὖν ἕνεκα τὴν ἔφοδον ἐποιεῖτο καὶ τόν τε Φιλίππου υἱὸν Ἀμύνταν ὡς ἐπὶ βασιλείᾳ τῶν Μακεδόνων ἦγε καὶ τῶν Ἀθηναίων πρέσβεις, οἳ ἔτυχον παρόντες τούτων ἕνεκα, καὶ ἡγεμόνα Ἅγνωνα· ἔδει γὰρ καὶ τοὺς Ἀθηναίους ναυσί τε καὶ στρατιᾷ ὡς πλείστῃ ἐπὶ τοὺς Χαλκιδέας παραγενέσθαι.
For both reasons, therefore, he made the invasion, and he brought both Amyntas, the son of Philip, to place him on the throne of Macedonia, and the Athenian ambassadors, who happened to be present on this account, and Hagnon as commander; for it was necessary that the Athenians also should join the expedition against the Chalcidians with ships and as large a force as possible.