provide much detail concerning allied troops. The individual Latin colonies contributed a cohort of infantry and a turma of cavalry. It is not clear whether cohorts were of a standard size, and we hear of units varying in strength from around 400 to 600 men. The pick of the allied infantry were formed into the cohorts of extraordinarii who camped near the general's tent and were at his immediate disposal. These troops headed the column during an advance and brought up the rear during a retreat. The ala was commanded by three prefects of the allies (praefecti sociorum) , who were Roman citizens. It is immediately noticeable that no unit of the Roman army had a single commander. There were six tribunes to a legion, three prefects to an ala, two centurions to a maniple and three decurions to a turma of cavalry. Only in the case of centurions are we told that one man in each maniple was senior. In every other case the Romans seem to have extended to the army their deep-seated dislike of entrusting sole political power to one man and preference for colleges of magistrates. To modern eyes the system seems flawed, and it would eventually be abandoned by the later professional Roman army, but it proved adequate for the relatively simple tactics employed by the legions in this period.
The very high number of officers certainly made it easier to control a Roman army. Centurions were chosen from the bravest soldiers, although Polybius emphasizes that it was normal to promote the men who were gifted leaders rather than individual fighters. A centurion was supposed to stay with his men, whom he led from the front and by personal example. Stubbornness and the refusal to give any ground were considered to be amongst their greatest virtues. In general the Roman army also placed great emphasis on individual bravery, having a complex system of military decorations and rewards. A soldier who saved the life of a fellow citizen received highest decoration of all, the corona civica, a laurel crown which was worn at every public festival in Rome and commanded great respect. Roman commanders held formal parades after a battle or at the end of a campaign, when conspicuous gallantry was rewarded, the achievements of each man being read out and admired by the serried ranks of the army. The greatest rewards were reserved for acts of individual boldness, such as fighting a single combat when there had been no need to do so. Aggression was encouraged in all ranks of the Roman army. The army made it clear what standards of behaviour were expected from its men, and was as willing to punish as to reward. A unit which failed badly in combat and fled without putting up a fight could suffer decimation, one in ten of its members being beaten to death. The remainder as a symbolic humiliation were issued barley instead of wheat and pitched their tents outside the ramparts. We hear at one point of defeated legionaries who were ordered to eat their meals standing up instead of reclining in the usual Roman style. The standards of discipline to which Roman citizens were willing to submit themselves during their military service were extremely harsh and much like those of a professional army. Sentries discovered asleep, usually propped up on their long shields, suffered the death penalty, as did men who stole from their comrades, and practising homosexuals. 29
The discipline of the Roman army in this period was often very tight, citizens losing most of the protection offered by the law to civilians. Even at this early date, Roman armies generated large amounts of bureaucracy and had a rigid daily routine. This was emphasized by the marching camp, the highly organized, neatly laid out structure built every night by an army on the march. Always built to recognizably the same pattern, a camp had four gateways and two main roads running at 90 degrees to each other and meeting in front of the main concentration of command tents. Everything was regulated, from the