A Brief History of Cyrus and Ardaxerxes

Diodorus reports that Archaxerxes' army numbered 400,000 soldiers in Calvaryman. Scholars believe it was probably closer to 50 or 60,000. The army had a mixture of heavily and lightly armed infantry, archers, calvaryman, and a large force of scythe chariots. They immediately headed westwards, and in October of 401 BC, they arrived on the plane of Babylonia,. Ardaxerxes dug a trench 60 feet wide and 10 feet deep, and encircled the camp with the baggage wagons of his train like a wall.