Olive said:
So what was the roman system?
Sorry, but this may turn into a long reply...
Firstly, the Roman army changed a heck of a lot over more than a thousand years. The example I will describe is fairly accurate for the late "Republican" era (actually, the beginning of the Roman empire). This is about the time of Caius Julius Caesar, mid-first century BCE.
Miles Gregarius - common soldier
Tesserarius - commands c. 10 MGs
Optio - second in command of a "century" (which, ironically, contains about 80 men at this stage)
Centurion - commands the standard unit, a "century"
6 "centuries" make a cohort. Senior centurion (ie the longest-serving centurion) commands the cohort
The six "centuries" (and their centurions) were named after where they were placed in the order of battle. They were called, from front to rear:
- Pilus Prior
- Pilus Posterior
- Princeps Prior
- Princeps Posterior
- Hastatus Prior
- Hastatus Posterior
This organisation holds true for cohorts 2-10. Cohort 1 is double-sized, containing c.160 men. Cohort 1's centurions are all called the "primi ordines". The centurions of Cohort 1 also hold seniority over the other 9 cohorts' centurions.
To complicate things a little, the first cohort has different ranks for their centurions. Again, from front to rear:
- Primus Pilus
- Princeps
- Hastatus
- Princeps Posterior
- Hastatus Posterior
The centurions were the NCOs of the Roman army, and at this stage really did most of the commanding of the men. Primus Pilus was the highest rank a normal soldier could attain - command ranks were restricted to the various "upper classes"...
The third in command of the legion was the camp prefect - the Praefectus Castrorum.
Above the Praefectus Castrorum were the various tribunes. There were six of these - five Tribuni Angusticlavius ("TA") (equestrians) and one Tribuni Laticlavius ("TL") (senatorial). The TAs had formerly commanded two cohorts each, but by this stage held staff appointments and left the centurions to command the men in battle. The TL was, in essence, an "apprentice" legion commander, and was the second-in-command of the legion.
Above the TL was the Legatus Legionis. He was a mature senator, typically in his 30's, and commanded the entire legion.
In addition there was a support staff, which included an adjutant (or cornicularis), the various clerks (librarii) and orderlies (beneficiarii). Not to mention the various "extras" - engineers, surveyors, medics, etc, etc, who were exempt from fatigues and other duties.
