All seemed to be going well: Germany was nearly conquered. There only remained the powerful kingdom of the Marcomanni under King Marbod, who dwelt in the fastnesses of Bohemia. Marbod was an able ruler who alone in Germany had succeeded in establishing a strong throne, and had drilled a powerful army of 70,000 foot and 4000 horse. As the historian Velleius observes, his Alpine boundaries were only two hundred miles from Italy, and this formidable power was a real menace to the safety of the empire. Accordingly elaborate plans were made for his destruction by an invasion from three sides at once. Unfortunately just at the moment when the armies were converging upon their prey, there broke out the great Pannonian and Illyrian revolt of A.D. 6, which brought all the tribes of Austria down upon the Romans. It was one of the most dangerous moments in Roman history. Fifteen legions were employed against them, and the military resources of the Empire strained almost to breaking-point. Luckily for Rome, Marbod made no attempt to join the revolt, and the barbarians were under divided leadership. Germanicus, the son of Drusus, helped Tiberius to crush them, but it took three or four years to accomplish it. [Illustration: Portrait of Varus] Meanwhile Germany itself had to be content with inferior legates. Quintilius Varus was one of those amiable men who cause mutinies by kindness. He fancied that Germany was tranquil. He went about founding cities, holding assizes, collecting tribute and giving justice according to Roman law precisely “as if he had been a city prætor in the Forum at Rome and not a general in the German forests.” Accordingly in A.D. 9 a plot was hatched against him. He was enticed away into the recesses of the Saltus Teutoburgiensis and slaughtered. Then the Cheruscan army swept down upon the three Roman legions and destroyed them. In itself the disaster was not overwhelming. Three legions had perished, but fifteen more, flushed with their recent victory over the Illyrians, were at hand to avenge them. The Cheruscans immediately submitted and Germanicus found no serious opposition when he penetrated Germany on an errand of chastisement. But for Augustus the reverse was decisive. He was now an old enfeebled man. When he heard of the disaster he beat his head against the wall and was often heard to cry: “Varus, give me back my legions.” He saw that there was no end to these adventures in the forest and no profit in them. As a frontier the Elbe was no better than the Rhine. Therefore he had the supremely good sense to accept the Rhine as his frontier. Henceforth Rhine and Danube with roads and forts along them, and with special arrangements to strengthen the angle where the rivers run small--that should be bulwark enough for the present. And so it was.