Romani local recruitments

[spqr_arcani]

I've posted my question under "Europa Romanorum" already, but
posting as a separate topic in case it doesn't get noticed.

In either case, I'm playing Romani, and noticed that I probably can't
build any troops in Mediolanum and Naissus in Polybian times.

I understand that in some regions you can't recruit any military
unit at all. I also concur with one of the EB folks that posted a
reply saying that EB is not a unit spam game, and I can also easily
adjust to that.

But I was thinking that Mediolanum should have at least some
Gauls since it's in Cisalpine Gaul, and Naissus should have some units
since it's in the Thracian vicinity.

Can someone comment on this?


EDIT: Just to be clear, I'm not asking for changes in the game itself.
If the answer's something in the order of "because Thracians didn't come
into contact with Romans in Polybian times" I'll be fine with it. I just want
to make sure that these two cities really don't have recruitable units and
that it's not something I'm doing wrong (forgetting a building or something).