History of the Peloponnesian War

After this, the Athenians coming in with the aid of one thousand men of arms and three hundred horse under the conduct of Laches and Nicostratus, the Argives (for they were afraid for all this to break the truce with the Lacedaemonians) willed them to be gone again; and when they desired to treat, would not present them to the people till such time as the Mantineans and Eleians, who were not yet gone, forced them unto it by their importunity.

Then the Athenians, in the presence of Alcibiades, that was ambassador there, spake unto the Argives and their confederates, saying that the truce was unduly made without the assent of the rest of their confederates, and that now (for they were come time enough) they ought to fall again to the war;