What is the difference between the position of the Roman colonies from the Greek?

The Roman colonies depended on Rome, in fact, the people were enslaved here, and the Greek colonies were free. The Greeks themselves rarely burdened another people with slavery and also rarely waged wars of conquest. Here already the policy of Rome was radically different. He constantly waged wars of conquest, which served as the main source of the influx of slaves to Rome. Rome itself was the central city where all the wealth flocked.