Postby Alex Kurtzman » Tue Aug 10, 2004 10:49 am
That is a good idea, and very valid. And the tactics romans used to fight different enemies did change over time.
The following can be said of the period of the rise of Agustus to about the end of the Flavian Emperors:
One thing that Boudacia and the Jewish Revolts showed, is that the Roman army is at a serious disadvantage in a guerilla war. As can be seen from the pursuit of dacian king and his followers at the end of the 2nd dacian war from trajan's column, that in pursuit of an elusive enemy , the Romans turned to their alae (cavalry), but the cavalry was never a particularly large combat arm until the later empire. Boudacia was defeated because she was brought to battle by the Romans, and the Jews because they tried to hold their cities against the Romans. The picts in scotland, however, persisted in their more guerilla-like tactics, so instead of trying to adapt to that, the Romans decided their lands had little value to them and just built a wall to keep them out.
As a general rule ( in the most basic of terms) the Romans fought by releasing their two pulim and then closing with the enemy to fight with gladius and shield. The basic formation was for the cohorts to be formed up in columns of three (although often deeper) in a straight line against the enemy. The rain of pila would disrupt the enemy lines, and even if it didn't kill, it would make shields unusuable, and because the head was of a softer metal, it would bend on impact and could not be thrown back either. A rather ingenius weapon.
One of the most famous formation changes came from scipio africanus at the battle of zama. At that point, the roman cohorts would be arranged in a sort of checker board pattern. At this battle, he arranged them in straight columns so that hanibal's elephants would pass between them and could be taken down.
Some Roman legionares are depicted fighting ahead of the main lines, without their lorica segmentata likely as skirmishers, so it would be logical to assume that some, if not all roman soldies had light infantry type training. Allied barbarians (numeri and foedrati) and auxillary infantry were also used for this purpose.
The Romans were very similar to the greeks in that they placed their emphasis on the heavy infantryman. But they also had a better understanding of combined arms than most of the pre-hellenistic greek armies did.
Caeser and other generals on several occasions divided their commands so that one force could be used to outflank the enemy. By in large however, it seems like the army of the pax romana period, met its enemies in a head on linear fashion. To defeat an enemy, they favored the pitched battle or the siege, and most enemies were willing to oblige, but it was really the superior discipline and tactics of the Roman soldier that often carried the day.
I also think that a lot of what dictated Roman tactic was the engagement itself. The romans prefered to choose the field of battle that they could use to their advantage, but often there wasn't a general "rule" per se about how a particular enemy was fought. Changes in Roman tactics to a particular enemy were generally reactionary.
The later empire saw many changes, especially in the armament of the Roman soldier, but I'll go into that more later