History of the Peloponnesian War

Thucydides

Thucydides. The English works of Thomas Hobbes of Malmesbury. Hobbes, Thomas. translator. London: John Bohn, 1843.

About the same time in the beginning of the same winter, Sitalces an Odrysian, the son of Teres, king of Thrace, made war upon Perdiccas the son of Alexander, king of Macedonia, and upon the Chalcideans bordering on Thrace upon two promises, one of which he required to be performed to him, and the other he was to perform himself.

For Perdiccas had promised somewhat unto him for reconciling him to the Athenians, who had formerly oppressed him with war, and for not restoring his brother Philip to the kingdom, that was his enemy, which he never paid him. And Sitalces himself had covenanted with the Athenians when he made league with them that he would end the war which they had against the Chalcideans of Thrace.

For these causes therefore he made this expedition and took with him both Amyntas the son of Philip (with purpose to make him king of Macedonia) and also the Athenian ambassadors then with him for that business and Agnon the Athenian commander. For the Athenians ought also to have joined with him against the Chalcideans both with a fleet and with as great land forces as they could provide.