i am asking because a federation between Thracians/Dacians and Slavs decides to go crazy in 100 AD and etablishes a strong empire to shatter the Romans. After the roman empire feel in a crisis because of a civil war, it breaks apart.
Now the Dacians, dont want to see a strong Rome happen again, so they decide to resettle Roman citizens over to their land, use them as slaves and spread them around. but now the actual question, how many romans could they max. settle ? also this is not a single event, but should happen over time, its a systematic attempt at weakening Italy itself and strenghting the own empire, to make it more popolous, the italian who get resettled are often woman, and will be married with local man, to assimilate their children.