Changes

====Dacia====

The conquest of Dacia, a powerful military force in the Balkans and a real rival of Rome, was a significant achievement. The Dacians had been a problem for the Romans since the time of Julius Caesar. However, no Roman Emperor had been effectively able to contain them. The conquest of Trajan from a military point of view was remarkable as the kingdom consisted of fortified settlements in a mountainous region.<ref>Cassius Dio, 10, 23</ref> It has often been argued that Domitian helped to weaken the Dacians before the conquest in 106 AD. The addition of the old Dacian kingdom to the Empire initially strengthened Rome. The gold mines of the area boosted the economy as did the new lands that were acquired. The annexation of the kingdom strengthened the Danube frontier and secured the Balkans for decades. However, many argue that the conquest of Dacia was ultimately a drain on the Empire. Moreover, over time as the Roman legions weakened it proved difficult to defend. In the crisis of the 3rd century, the province was abandoned to the Goths and other tribes.<ref>Bennet, p 189</ref> However, the territory had remained part of the Empire for 150 years and at least in the first century of Roman rule it brought the empire new revenues and was a bulwark against barbarian incursions.

====Parthia and the East====