History of the Peloponnesian War

The Athenians, Argives, Mantineans, and Eleans, acting for themselves and the allies in their respective empires, made a treaty for a hundred years, to be without fraud or hurt by land and by sea.

1. It shall not be lawful to carry on war, either for the Argives, Eleans, Mantineans, and their allies, against the Athenians, or the allies in the Athenian empire; or for the Athenians and their allies against the Argives, Eleans, Mantineans, or their allies, in any way or means whatsoever.The Athenians, Argives, Eleans, and Mantineans shall be allies for a hundred years upon the terms following:—

2. If an enemy invade the country of the Athenians, the Argives, Eleans, and Mantineans shall go to the relief of Athens, according as the Athenians may require by message, in such way as they most effectually can, to the best of their power. But if the invader be gone after plundering the territory, the offending state shall be the enemy of the Argives, Mantineans, Eleans, and Athenians, and war shall be made against it by all these cities; and no one of the cities shall be able to make peace with that state, except all the above cities agree to do so.

3. Likewise the Athenians shall go to the relief of Argos, Mantinea, and Elis, if an enemy invade the country of Elis, Mantinea, or Argos, according as the above cities may require by message, in such way as they most effectually can, to the best of their power. But if the invader be gone after plundering the territory, the state offending shall be the enemy of the Athenians, Argives, Mantineans, and Eleans, and war shall be made against it by all these cities, and peace may not be made with that state except all the above cities agree to it.

4. No armed force shall be allowed to pass for hostile purposes through the country of the powers contracting, or of the allies in their respective empires, or to go by sea, except all the cities—that is to say, Athens, Argos, Mantinea, and Elis—vote for such passage.