So atm Dorwinions military is pretty decent. How ever I personally think they could use a little extra punch. Thats why I suggest a mounted crossbow unit for Dorwinion. That simple. Europeans have used mounted crossbowmen before to battle the mobile horse archers of the steppes. So I cant see why Dorwinion wouldnt do the same to protect there trade. It would therfore simply be a crossbower on a horse.
Aligment requirement: +250.
Starting cost: 70-80 silver coins.
Thats all really.
Have a nice day.