A broad view of foreign politics showed Augustus two vital points of danger--the North and East. To the north the fierce and warlike barbarians of Germany had been checked indeed by Julius, but also exasperated. Tribes more or less akin to them extended southwards across the Danube and even to the Austrian Tyrol, where they were little more than a week’s march from the gates of Rome. A strong frontier policy was needed here. In the East there were the Parthians, the only possible rival power to Rome. The Romans at Carrhæ noticed that while the chiefs wore their hair parted and curled and their faces painted in the Persian fashion, the warriors had the unkempt locks of barbarian Thrace. It is likely enough that these Parthian bowmen had come in round the shores of the Black Sea from Thrace or South Russia. They had all the characteristics of northern nomads, but their kings had a good deal of Hellenic culture. They could boast of a choice collection of Roman eagles captured not only from Crassus at Carrhæ, but from two armies sent against them by Antony. Thousands of Roman prisoners were still working as slaves on the banks of the Euphrates. The task of punishing them had been definitely laid upon Augustus as a legacy from Julius, who had been slain at the moment when he was about to undertake it himself. Moreover, the Romans felt the loss of those standards very acutely, and not the least motive for their acquiescence in monarchy had been the hope that a monarch would retrieve their honour in this quarter. The earlier poems of Horace constantly express hopes of vengeance. The manner in which Augustus satisfied these ardent aspirations of national pride is characteristic of him. Instead of the armies and bloody battles which historians demand of their favourites, Augustus achieved his object by luck and strategy. When he was organising the affairs of the East in 29 B.C., after the conquest of Egypt, he had left the Parthian question unsolved. For this, Mommsen takes him to task, but there is little doubt that it would have been folly to undertake a great and perilous war at that moment while the affairs of Rome were still in disorder. Moreover the attitude of the army compelled him to return home. Instead of fighting, he was content to set up rival powers on the Parthian frontier. The Parthians hated their king Phraates and there was a deposed rival in the field, Tiridates, to whom Augustus now gave shelter in the province of Syria, hoping, as indeed happened, that his presence in the neighbourhood would keep Phraates civil. At the same time Augustus set up a buffer kingdom of Lesser Armenia on the Parthian border and in the south strengthened and reinstated Herod the Great. Four or five legions were left to guard Syria.