Peace of Antalcidas
Sparta's former allies turned against it in 395 BC, with Thebes instigating a Spartan attack that would lead to the Corinthian War. This pit Sparta against a coalition of Athens, Thebes, Corinth, and Argos, which was backed by Persia. After a series of Athenian successes, Persia enforced the Peace of Antalcidas: it would take control of all Greek cities in Asia Minor as well as the island of Cyprus and guarantee the independence of all other Greek cities with the exceptions of Lemnos, Imbros, and Scyros, which would belong to Athens. This war empowered Athens for the first time since the end of the Peloponnesian War, allowing it to rebuild its previously decommissioned fortifications and its navy.