Peace of Antalcidas
Considered in isolation, this peace treaty could be taken as a skilled piece of Athenian diplomacy. But since it never actually came into effect, it can only be speculated whether it could have formed the basis of an enduring peace. After all, the treaty partners had taken account of the idea that sufficient force needed to be made available for use against potential treaty breakers in order to maintain the peace. In the Peace of Antalcidas, this had been accomplished by the threat of the Great King. In an agreement between free states, it had to be an agreement to oppose an attack on a treaty partner together.