History of the Peloponnesian War

But we did not become allies of the Athenians for the subjugation of the Hellenes, but allies of the Hellenes for their liberation from the Mede;

and as long as the Athenians led us fairly we followed them loyally; but when we saw them relax their hostility to the Mede, to try to compass the subjection of the allies, then our apprehensions began.

Unable, however, to unite and defend themselves, on account of the number of confederates that had votes, all the allies were enslaved, except ourselves and the Chians, who continued to send our contingents as independent and nominally free.