Anabasis (1.2.15-1.2.19)

He ordered the Greeks to form their lines and take their positions just as they were accustomed to do for battle, each general marshalling his own men. So they formed the line four deep, Menon and his troops occupying the right wing, Clearchus and his troops the left, and the other generals the centre.

Cyrus inspected the barbarians first, and they marched past with their cavalry formed in troops and their infantry in companies; then he inspected the Greeks, driving past them in a chariot, the Cilician queen in a carriage. And the Greeks all had helmets of bronze, crimson tunics, and greaves, and carried their shields uncovered.

When he had driven past them all, he halted his chariot in front of the centre of the phalanx, and sending his interpreter Pigres to the generals of the Greeks, gave orders that the troops should advance arms and the phalanx move forward in a body. The generals transmitted these orders to the soldiers, and when the trumpet sounded, they advanced arms and charged. And then, as they went on faster and faster, at length with a shout the troops broke into a run of their own accord, in the direction of the camp.

As for the barbarians, they were terribly frightened; the Cilician queen took to flight in her carriage, and the people in the market[*] left their wares behind and took to their heels; while the Greeks with a roar of laughter came up to their camp. Now the Cilician queen was filled with admiration at beholding the brilliant appearance and the order of the Greek army; and Cyrus was delighted to see the terror with which the Greeks inspired the barbarians.