The Corinthian War began in 395 BC when Thebes, Argos,
Corinth, and
Athens, with
Persian support and funding, united to oppose Spartan intervention in
Locris and
Phocis. At the start of the war, Agesilaus was in
Ionia, campaigning against the Persians. When hostilities opened, he was recalled with his forces, and began an overland march through
Thrace and central Greece back to the Peloponnese. Entering
Boeotia, he was opposed by a force composed primarily of Thebans, allied Boeotians, and Argives. Agesilaus's forces were composed of a regiment and a half of
Spartiates, augmented by a force of freed
helots, a sizable force of allied troops from the Peloponnese and Ionia, and a large contingent of mercenaries. Facing him on the plain, near the foot of
Mount Helicon, was an army made up of Boeotians, Athenians, Argives, Corinthians,
Euboeans, and Locrians. In all, the allies probably had 20,000
hoplites. To oppose these, Agesilaus had 15,000 hoplites. The cavalry forces of the two sides were roughly equal, but Agesilaus had substantially more
peltasts. Prior to the battle some of Agesilaus's army were disturbed by an omen witnessed some days before, when the sun had appeared crescent shaped. To reassure his men, Agesilaus first reminded them of the recent Spartan victory at
Nemea. He then told them that the Spartan
navarch Peisander had been killed in a victory over the Persian fleet. In fact, as Agesilaus knew, Peisander had been killed while suffering a crushing defeat at
Cnidus. These reassurances, however, buoyed his army's morale going into the battle. The defeat at Nemea weighed heavily on the Argives and Corinthians. The Athenians were too familiar with the ups and downs of their previous long and disastrous war against Sparta, and the willingness of the Persians to switch support from one side to the other, to be overly encouraged. Only the Boeotians seemed confident of ultimate victory. ==Battle==