History of the Peloponnesian War

The Athenians, then, through Alcibiades, who was present as ambassador, protested before the Argives and their allies that it was not right even to have made the truce without the consent of the rest of the allies, and now, since they themselves were present opportunely, they ought to resume the war.

Having persuaded the allies by their arguments, all of them except the Argives proceeded at once against Orchomenus in Arcadia; the Argives, though convinced, remained behind at first, then later came on too.