Cunaxa (Expedition of Cyrus the Younger).
Fought B.C. 401 between the Persians, about 400,000 strong, under Artaxerxes, and the army of his brother Cyrus, consisting of 100,000 Orientals, with 14,000 Greek mercenaries, under Clearchus. The Greeks on the right wing drove back the Persian left, and Cyrus in the centre broke the king's body-guard, which fled in disorder. While pursuing his brother, however, he was struck down, and his Orientals at once took to flight. The Greeks refused to surrender, and were allowed to retain their arms and march, to the coast. This expedition of Cyrus forms the subject of Xenophon's "Anabasis."