History of the Peloponnesian War

When he returned, and the Athenians heard that nothing had been done at Lacedaemon, they flew into a passion, and deciding that faith had not been kept with them, took advantage of the presence of the Argives and their allies, who had been introduced by Alcibiades, and made a treaty and alliance with them upon the terms following:—

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.