I find that Augustus was a better Roman leader as he started an era of peace in Rome. The Pax Romana, or Roman Peace. He Built a permanent, professional army of 150,000 men and he founded a special unit called the Praetorian Guard. This consisted of 9,000 men who were in charge of guarding the emperor. Later, this became very important in politics. Augustus also conquered new territories, rebuilt Rome, he imported grain from Africa for the poor because he knew that they would cause less trouble if they were well-fed. He appointed a consul or governor to each of Rome's provinces, he reformed laws to make them easier to understand and apply and he reformed the Roman tax system.