Socrates (ca 436 BC – 401 BC) was a Greek mercenary general from Achaea who traveled to Persia to fight at the Battle of Cunaxa. Xenophon describes him as brave in war and a reliable friend. Socrates was summoned by Cyrus, with whom he was already connected, to bring as many troops as he could muster under the pretense that Cyrus intended to attack Tissaphernes. Socrates had previously been besieging Miletus alongside Pasion the Megarian. Socrates brought Cyrus about 500 Hoplites. Socrates and the other troops were only later told that Cyrus intended to seize the Persian throne from his brother Artaxerxes. Socrates fought at the Battle of Cunaxa and the Greek forces were able to drive the Persians into retreat, but Cyrus and his force faced heavy casualties and Cyrus himself was killed in