Roman Baggage Trains?

[Sean Manning]

Sean, this is very interesting. However, where does the Strategikon suggest that carts were pulled by mules or horses?

My library is in boxes, but I will check when I am finished moving. I could have been thinking of the carroballistae of the Principate which are drawn by equines on Trajan's column. Of course these are light vehicles with a light load. I have not studied ancient transport in detail ... but a lot of the experts seem to think that Roman vehicles were better than used to be suggested.