History of the Peloponnesian War

Accordingly since envoys were present from the Athenians, a conference was held and they came to an agreement, and oaths were sworn and an alliance made on the following terms:

"The Lacedaemonians and Athenians shall be allies for fifty years on the following conditions: 1. "If any enemy invade the territory of the Lacedaemonians and be doing them harm, the Athenians shall help the Lacedaemonians in whatever way they can most effectively, with all their might; but if the enemy, after ravaging the country, shall have departed, that city shall be the enemy of the Lacedaemonians and Athenians, and shall suffer at the hands of both, and neither city shall make peace with it without the other. These conditions shall be observed honestly, zealously, and without fraud. 2.