The
Battle of Cunaxa was fought in 401 BC between
Cyrus the Younger and his elder brother Arsaces, who had inherited the
Persian throne as
Artaxerxes II in 404 BC. The great battle of the revolt of Cyrus took place 70 km north of
Babylon, at Cunaxa , on the left bank of the Euphrates River. The main source is a Greek eyewitness and soldier,
Xenophon.