Rome Conquered for Security

It was interesting to read that Rome did not expand for greed but for protection. If they felt threatened by a neighbor they conquered them, but it is what takes place after the victory that is most astonishing. In order to keep relative peace with the newly acquired people and land Rome granted them certain rights and citizenship. Of course they still took taxes and men for their Army but for the most part they let the conquered areas or cities keep relative autonomy. They even go one step further by building a state of the art road system that assured the quick and smooth transportation of soldier and supplies to conquered areas in case of a sudden uprising. I believe it was the actions Rome took after conquering them that insured their power and stability for all of those years. By staying some what civil and intuitive Rome was able to utilize the new territories and they were able to spend more time worrying about the next frontier and not the previously conquered one. This genius involved with most successful empires is often overlooked or under appreciated. In this case I was stunned to see the impact of such a policy, and I am interested to see if future empires followed the Romans order. I am willing to bet that if those future expanding nations and empires utilized this same approach they too had a successful and lasting rule.