'Cavalry' in the Bible

Then, calling to him two of the Captains, he gave his orders. "Get ready two hundred men," he said, "to march to Caesarea, with seventy cavalry and two hundred light infantry, starting at nine o'clock to-night."

The next day the infantry returned to the barracks, leaving the cavalry to proceed with him;

and, the cavalry having reached Caesarea and delivered the letter to the Governor, they brought Paul also to him.

The number of the cavalry was two hundred millions; I heard their number.