Peloponnesian League
The Greco-Persian Wars (499–449 BC), concluded by the Peace of Callias gave way not only to the liberation of Greece, Macedon, Thrace, and Ionia from Persian rule, but also resulted in giving the dominant position of Athens in the Delian League, which led to conflict with Sparta and the Peloponnesian League, resulting in the Peloponnesian War (431–404  BC), ending in a Spartan victory.