Why the Romans needed more land

Explanation:

Winning battles was relatively easy for the Romans due to this army, which allowed them to keep gaining more and more land, and defending it with efficiency. The Roman roads were essential in aiding the empire to flourish and control its land.

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.