History of the Peloponnesian War

The convention of the Lacedaemonians and the allies with King Darius, the sons of the king, and Tissaphernes, that there should be a treaty and friendship between them on these terms:

Whatever territory and cities belong to King Darius, or did belong to his father, or his ancestors, against these neither the Lacedaemonians nor the allies of the Lacedaemonians shall be permitted to proceed for the purpose of war, or for any harm: neither shall the Lacedaemonians, nor their confederates, exact tribute from these cities. Neither shall King Darius, or any states in the king's dominions, be allowed to proceed against the Lacedaemonians, or their allies, for the purpose of war or other injury.——Should the Lacedaemonians, or their allies, require any assistance from the king, or the king stand in need of any from the Lacedaemonians, or their allies;

to whatever they may gain each other's assent, that shall be right for them to do.——Both parties shall carry on in common the war against the Athenians and their allies;

and should they come to terms of peace, they shall both do so in common.

——Whatever troops shall be in the king's country in consequence of the king's having sent for them, the king shall pay their expenses.——Should any of the states which have concluded this convention with the king proceed against the king's country, the rest shall prevent it, and assist the king to the utmost of their power. And should any of those in the king's country, or in all his dominions, proceed against the country of the Lacedaemonians, or of their allies, the king shall prevent it, and assist them to the utmost of his power.