The king's views altogether grew high; he had begun the war from despair, but the unexpectedly easy victory and the non-arrival of the dreaded Sulla occasioned a transition to the most highflown hopes. He set up his home in the west of Asia Minor; Pergamus the seat of the Roman governor became his new capital, the old kingdom of Sinope was handed over to the king's son Mithradates to be administered as a viceroyship; Cappadocia, Phrygia, Bithynia were organized as Pontic satrapies. The grandees of the empire and the king's favourites were loaded with rich gifts and fiefs, and not only were the arrears of taxes remitted, but exemption from taxation for five years was promised, to all the communities-a measure which was as much a mistake as the massacre of the Romans, if the king expected thereby to secure the fidelity of the inhabitants of Asia Minor.

The king's treasury was, no doubt, copiously replenished otherwise by the immense sums which accrued from the property of the Italians and other confiscations; for instance in Cos alone 800 talents (195,000 pounds) which the Jews had deposited there were carried of by Mithradates. The northern portion of Asia Minor and most of the islands belonging to it were in the king's power; except some petty Paphlagonian dynasts, there was hardly a district which still adhered to Rome; the whole Aegean Sea was commanded by his fleets. The south-west alone, the city-leagues of Caria and Lycia and the city of Rhodes, resisted him. In Caria, no doubt, Stratonicea was reduced by force of arms; but Magnesia on the Sipylus successfully withstood a severe siege, in which Mithradates' ablest officer Archelaus was defeated and wounded. Rhodes, the asylum of the Romans who had escaped from Asia with the governor Lucius Cassius among them, was assailed on the part of Mithradates by sea and land with immense superiority of force. But his sailors, courageously as they did their duty under the eyes of the king, were awkward novices, and so Rhodian squadrons vanquished those of Pontus four times as strong and returned home with captured vessels. By land also the siege made no progress; after a part of the works had been destroyed, Mithradates abandoned the enterprise, and the important island as well as the mainland opposite remained in the hands of the Romans.

But not only was the Asiatic province occupied by Mithradates almost without defending itself, chiefly in consequence of the Sulpician revolution breaking out at a most unfavourable time; Mithradates even directed an attack against Europe. Already since 662 the neighbours of Macedonia on her northern and eastern frontier had been renewing their incursions with remarkable vehemence and perseverance; in the years 664, 665 the Thracians overran Macedonia and all Epirus and plundered the temple of Dodona. Still more singular was the circumstance, that with these movements was combined a renewed attempt to place a pretender on the Macedonian throne in the person of one Euphenes. Mithradates, who from the Crimea maintained connections with the Thracians, was hardly a stranger to all these events. The praetor Gaius Sentius defended himself, it is true, against these intruders with the aid of the Thracian Dentheletae; but it was not long before mightier opponents came against him. Mithradates, carried away by his successes, had formed the bold resolution that he would, like Antiochus, bring the war for the sovereignty of Asia to a decision in Greece, and had by land and sea directed thither the flower of his troops. His son Ariarathes penetrated from Thrace into the weakly-defended Macedonia, subduing the country as he advanced and parcelling it into Pontic satrapies.

Abdera and Philippi became the principal bases for the operations of the Pontic arms in Europe. The Pontic fleet, commanded by Mithradates' best general Archelaus, appeared in the Aegean Sea, where scarce a Roman sail was to be found. Delos, the emporium of the Roman commerce in those waters, was occupied and nearly 20,000 men, mostly Italians, were massacred there; Euboea suffered a similar fate; all the islands to the east of the Malean promontory were soon in the hands of the enemy; they might proceed to attack the mainland itself. The assault, no doubt, which the Pontic fleet made from Euboea on the important Demetrias, was repelled by Bruttius Sura, the brave lieutenant of the governor of Macedonia, with his handful of troops and a few vessels hurriedly collected, and he even occupied the island of Sciathus; but he could not prevent the enemy from establishing himself in Greece proper.

There Mithradates carried on his operations not only by arms, but at the same time by national propagandism. His chief instrument for Athens was one Aristion, by birth an Attic slave, by profession formerly a teacher of the Epicurean philosophy, now a minion of Mithradates; an excellent master of persuasion, who by the brilliant career which he pursued at court knew how to dazzle the mob, and with due gravity to assure them that help was already on the way to Mithradates from Carthage, which had been for about sixty years lying in ruins. These addresses of the new Pericles were so far effectual that, while the few persons possessed of judgment escaped from Athens, the mob and one or two literati whose heads were turned formally renounced the Roman rule. So the ex-philosopher became a despot who, supported by his bands of Pontic mercenaries, commenced an infamous and bloody rule; and the Piraeeus was converted into a Pontic harbour. As soon as the troops of Mithradates gained a footing on the Greek continent, most of the small free states - the Achaeans, Laconians, Boeotians - as far as Thessaly joined them. Sura, after having drawn some reinforcements from Macedonia, advanced into Boeotia to bring help to the besieged Thespiae and engaged in conflicts with Archelaus and Aristion during three days at Chaeronea; but they led to no decision and Sura was obliged to retire when the Pontic reinforcements from the Peloponnesus approached (end of 666, beg. of 667). So commanding was the position of Mithradates, particularly by sea, that an embassy of Italian insurgents could invite him to make an attempt to land in Italy; but their cause was already by that time lost, and the king rejected the suggestion.

The position of the Roman government began to be critical. Asia Minor and Hellas were wholly, Macedonia to a considerable extent, in the enemy's hands; by sea the Pontic flag ruled without a rival. Then there was the Italian insurrection, which, though baffled on the whole, still held the undisputed command of wide districts of Italy; the barely hushed revolution, which threatened every moment to break out afresh and more formidably; and, lastly, the alarming commercial and monetary crisis[13] occasioned by the internal troubles of Italy and the enormous losses of the Asiatic capitalists, and the want of trustworthy troops. The government would have required three armies, to keep down the revolution in Rome, to crush completely the insurrection in Italy, and to wage war in Asia; it had but one, that of Sulla; for the northern army was, under the untrustworthy Gnaeus Strabo, simply an additional embarrassment. Sulla had to choose which of these three tasks he would undertake; he decided, as we have seen, for the Asiatic war.