The next great blow received by Rome came also from Gothic hands. The first mention of Alaric shows us a significant change in Roman policy. The Gothic chief holds a high command in the armies of the Empire, and was employed by the ruler in possession in his struggle against a pretender. When he turned against his employer it was because he was disappointed in his ambition of filling a yet higher post. There is no need to describe his career at length. A brief outline shows plainly enough, not only his genius, for he was certainly a statesman and a soldier of great ability, but the deplorable weakness of the Empire. At first, indeed, he had an antagonist who was more than his match. In 396 he openly revolted, and marched into Greece, which he plundered without meeting with any resistance, for the country had long since passed into a condition of helpless servitude. But he was pursued by Stilicho, himself a barbarian by birth—a soldier who was equal to any of the great commanders of the past. The Goths found themselves shut up in the Peloponnesus. Their leader, however, contrived to extricate himself from his difficulties, transporting his army across the western end of the Gulf of Corinth, and occupying Epirus. The next thing in his extraordinary career was that he was appointed by the Emperor of the East—the Eastern and Western Empires had been finally severed four years before[50]—to be the Governor of the province of Illyricum. Here he was able to plan and prepare his schemes for the final conquest of Rome. That the opportunity for so doing should have been given by the power that should have been Rome's closest ally was a sure sign of the approaching ruin.

A few years after his establishment in Illyricum, Alaric, who had been in the meantime saluted king by his countrymen, felt himself equal to the task of invading Italy. Stilicho, however, was still in command of the Roman armies—now almost wholly recruited from barbarian tribes—and he proved himself more than a match for the Gothic king. The great battle of Pollentia (in Northern Italy) was contested with more than usual stubbornness. Fortune changed sides more than once. Stilicho's genius prevailed, however, in the end; the Goths were driven from the field; their camp was taken, and Alaric's wife fell into the hands of the conquerors. But the great leader was not yet beaten. His cavalry, the principal strength of his forces, had not been broken, and he formed the bold scheme of marching upon Rome. This, however, was given up; he accepted, in preference, the offer of Stilicho, who proposed to allow him to depart unharmed from Italy, on condition of his becoming for the future an ally of Rome. He did not, however, intend to perform his part of the bargain. On the contrary, he formed a scheme for possessing himself of Gaul. But his plans were betrayed to Stilicho, and he suffered another defeat in the neighbourhood of Verona which was not less disastrous than that of Pollentia. Even then, however, he was a formidable enemy, and Stilicho allowed him to retire from Italy, rather than drive him to extremities.

After four years, years of incessant drain upon the resources of the Empire, Alaric prepared to renew his attempt on Rome. Stilicho was dead. Possibly he had deserved his fate, for he had certainly cherished ambitions which did not become a loyal subject. But there was no one to take his place at the head of the legions. Certainly Alaric met with no opposition as he marched through Italy, finally pitching his camp under the walls of Rome. Resistance was impossible; it only remained to see what was the smallest price at which the enemy could be bought off. Two envoys from the Senate approached the king. They began by counselling prudence. It would be well, they said, if Alaric did not drive a brave and numerous people to despair. "The thicker the hay, the easier to mow," was the king's answer. When asked to name the ransom which he was willing to accept, he declared that he must have all the gold and silver that they possessed, all their valuables, and all the slaves of barbarian birth. "What then do you leave us?" was the question which the envoys in their consternation put to him. "Your lives," he answered. In the end, however, he consented to a compromise, by which he was to receive five thousand pounds of gold, thirty thousand pounds of silver, and a quantity of precious articles, silk, cloth, and spices.

The respite thus purchased was but brief. The ministers of the Emperor, safe themselves in the fortress of Ravenna, behaved with a strange mixture of weakness and treachery. Their crowning act of folly was to permit a barbarian chief in their pay to make an unprovoked attack on a detachment of Goths. This was indeed destroyed, but the victory was dearly purchased. Alaric, justly indignant at such behaviour, broke off all negotiations, and marched on Rome. The Senate prepared to make all the resistance possible. But nothing was really done. Some traitors within the city opened one of the gates, and the Goths made their way into the city, which was given over to slaughter and plunder for six days. Rome may be said to have thus lost for ever her claim to rule the world. But her cup of humiliation was not yet full.

Alaric did not long survive the conquest of Rome. He died in the same year, and was buried—so, indeed, the story runs—in the channel of a stream whose waters had been diverted for the time, the labourers who performed the work being slaughtered to keep the secret of his resting-place from being ever divulged.

But Rome was to fall into the power of a conqueror yet more powerful and more ferocious. Attila was a Hun, and is said to have even exaggerated in his personal appearance all the characteristic deformities of his race. The boundaries of the Empire can hardly be defined, but it is certain that it was of enormous extent. It is scarcely an exaggeration to say that it reached from China to the Rhine. The hosts that followed him were almost beyond counting. For once the incredible numbers in which the historians of antiquity delight were no exaggeration. It is probably a modest estimate of his host to say that it consisted of half a million combatants.

Attila and Leo.

Powerful as he was, the king of the Huns was not permitted to pursue his course without opposition. Rome could still produce or rather adopt great soldiers—Aëtius, the great antagonist of Attila, was a Scythian by birth as Stilicho was a Vandal—and great soldiers can always find men to follow them. In the earlier part of Attila's reign,[51] his operations were carried on within the limits of the Eastern Empire. In 450 he attacked the West, one of his pretexts being the refusal of the Emperor Valentinian III. of his proposals for the hand of the Princess Honoria. He crossed the Rhine with a huge army at Strasburg, and marched on Orleans. But Aëtius was prepared for him. A great battle was fought at Châlons-sur-Marne, the last successful effort of the Roman arms. One of the notable features of the battle is the division of the Goths, the Ostrogoths following the standard of Attila, while the Visigoths fought for Rome. The loss of men amounted to between two and three hundred thousand, but it was not unequally divided. Aëtius could not prevent the retreat of Attila, who retired into Eastern Europe, where he spent some months in recruiting his army.