History of the Peloponnesian War

The next summer, the Peloponnesians and their confederates came not into Attica but turned their arms against Plataea, led by Archidamus the son of Zeuxidamus, king of the Lacedaemonians, who, having pitched his camp, was about to waste the territory thereof. But the Plataeans sent ambassadors presently unto him with words to this effect:

Archidamus, and you Lacedaemonians, you do neither justly nor worthy yourselves and ancestors in making war upon Plataea. For Pausanias of Lacedaemon, the son of Cleombrotus, having, together with such Grecians as were content to undergo the danger of the battle that was fought in this our territory, delivered all Greece from the slavery of the Persians, when he offered sacrifice in the market-place of Plataea to Jupiter the deliverer, called together all the confederates and granted to the Plataeans this privilege: that their city and territory should be free; that none should make any unjust war against them nor go about to subject them; and if any did, the confederates then present should to their utmost ability revenge their quarrel.

These privileges your fathers granted us for our valour and zeal in those dangers. But now do you the clean contrary; for you join with our greatest enemies, the Thebans, to bring us into subjection.

Therefore calling to witness the gods then sworn by and the gods both of your and our country, we require you that you do no damage to the territory of Plataea nor violate those oaths, but that you suffer us to enjoy our liberty in such sort as was allowed us by Pausanias.

The Plataeans having thus said, Archidamus replied and said thus: Men of Plataea, if you would do as ye say, you say what is just. For as Pausanias hath granted to you, so also be you free and help to set free the rest, who, having been partakers of the same dangers then and being comprised in the same oath with yourselves, are now brought into subjection by the Athenians. And this so great preparation and war is only for the deliverance of them and others, of which if you will especially participate, keep your oaths; at least (as we have also advised you formerly) be quiet and enjoy your own in neutrality, receiving both sides in the way of friendship, neither side in the way of faction. Thus said Archidamus.

And the ambassadors of Plataea, when they had heard him, returned to the city, and having communicated his answer to the people, brought word again to Archidamus: that what he had advised was impossible for them to perform without leave of the Athenians in whose keeping were their wives and children; and that they feared also for the whole city lest when the Lacedaemonians were gone, the Athenians should come and take the custody of it out of their hands; or that the Thebans, comprehended in the oath of receiving both sides, should again attempt to surprise it. But Archidamus, to encourage them, made this answer: