History of the Peloponnesian War

And having summoned the allies, they told them that their own opinion was that the Athenians were in the wrong; but that they wished to summon all the allies also, and to put it to the vote; that after general consultation they might declare war, if they thought fit.

They then, after having settled this, returned home; as did the ambassadors of the Athenians afterwards, when they had despatched the business they had gone on.

This decision of the assembly, that the treaty had been broken, was made in the fourteenth year of the continuance of the thirty years' truce, which had been concluded after the war with Euboea.