History of the Peloponnesian War

From calculating and forecasting all these things, in accordance with his wish to reduce the Greeks to a footing of equality with one another, he consequently sent for the Lacedaemonians, and gave them supplies, and concluded a third treaty with them, to the following effect:

In the thirteenth year of the reign of Darius, while Alexippidas was ephor at Lacedaemon, a convention was concluded on the plain of the Maeander by the Lacedaemonians and their allies, with Tissaphernes, Hieramenes, and the sons of Pharnaces, respecting the interests of the king, the Lacedaemonians, and their allies.—That the king's country, so far as it lies in Asia, shall belong to the king still;

and that respecting his own territory, the king shall adopt such measures as he pleases.—

That the Lacedaemonians and their allies shall not invade the king's territory, nor the king that of the Lacedaemonians or their allies, to do it any harm.— That if any of the Lacedaemonians invade the king's territory to do it harm, the Lacedaemonians and their allies shall prevent it;

and that if any one from the king's country proceed against the Lacedaemonians or their allies to do them harm, the king shall prevent it.——