Exactly. There are 4 stages of these mercenaries. The smaller bands consist of small (4), medium (8) and large (12) units. These are just mercenaries who travel to a meeting point inland. The 4th level is then an army (border army with 16 units) that appears at the border due to its size.
It is true that hardly any large army was positioned in a city, but smaller ones did (Praetorian Guards in Rome and a Cohorta Urbana in all other Roman cities).
Larger armies were divided into the provinces, but still within their own country. That's why the strategy in CIV4 is to have at least one army positioned in your own country (centrally) for urban protection.
It is true that hardly any large army was positioned in a city, but smaller ones did (Praetorian Guards in Rome and a Cohorta Urbana in all other Roman cities).
Larger armies were divided into the provinces, but still within their own country. That's why the strategy in CIV4 is to have at least one army positioned in your own country (centrally) for urban protection.