#443 – Gregory Aldrete: The Roman Empire – Rise and Fall of Ancient Rome

3154.616 - 3178.193 Gregory Aldrete

flexibility, and subdividing their army. So Alexander's phalanx was a mass of, let's say, 5,000 guys, and it was one unit. The Roman army is organized in an ever-decreasing number of subunits. So you have a group of eight guys who are a contubernia, the men who share a tent. You take 10 of those, and they form a century of 80 men. You take a bunch of those, and you form a cohort.