Peloponnesian League
The Spartan army was composed of some 18,000–19,000 hoplites, with associated light troops. Of the hoplites, 6,000 were Spartan, with the remainder coming from the other states of the Peloponnesian League: 3,000 from the Eleans, Triphylians, Acrorians, and Lasionians; 1,500 from Sicyon; and at least 3,000 from Epidaurus, Troezen, Hermione, and Halieis. There was also a cavalry force of about 600, about 300 Cretan archers, and at least 400 Marganian, Letrinian, and Amphidolian slingers.