History of the Peloponnesian War

"If the Lacedaemonians or their confederates shall need anything of the king, or the king of the Lacedaemonians or their confederates, what they shall persuade each other to do, if they do it, shall be good.

"They shall both of them make war jointly against the Athenians and their confederates; and when they shall give over the war, they shall also do it jointly. "Whatsoever army shall be in the king's country, sent for by the king, the king shall defray.