08-27-2018, 01:04 PM
I suspect that Roman units were almost never two deep. I advocate the analysis, put forward by Goldsworthy and others, that the fact that the handful of references to unit depth tend to be in multiples of 3 or 4 (e.g. 3,4,6,8). This must suggest a drill based around contubernia of 6 or 8 men, deploying either by the file or half file.