Before winter, Antony sailed for Athens in company with Octavia, who for the time seems to have banished Cleopatra from his thoughts. But he disgusted all true Romans by assuming the attributes of Grecian gods and indulging in Grecian orgies.
He found the state of things in the East greatly changed since his departure. He had commissioned P. Ventidius Bassus, an officer who had followed Fulvia from Italy, to hold the Parthians in check till his return. Ventidius was son of a Picenian nobleman of Asculum, who had been brought to Rome as a captive in the Social War. In his youth he had been a contractor to supply mules for the use of the Roman commissariat. But in the civil wars which followed, men of military talent easily rose to command; and such was the lot of Ventidius. While Antony was absent in Italy, he drove Q. Labienus into the defiles of Taurus, and here that adventurer was defeated and slain. The conqueror then marched rapidly into Syria, and forced Pacorus also to withdraw to the eastern bank of the Euphrates.
In the following year (38) he repelled a fresh invasion of the Parthians, and defeated them in three battles. In the last of these engagements Pacorus himself was slain on the fifteenth anniversary of the death of Crassus. Antony found Ventidius laying siege to Samosata, and displaced him, only to abandon the siege and return to Athens. Ventidius repaired to Rome, where he was honored with a well-deserved triumph. He had left it as a mule jobber; he returned with the laurel round his brows. He was the first, and almost the last, Roman general who could claim such a distinction for victory over the Parthians.
The alliance with Sext. Pompeius was not intended to last, and it did not last. Antony refused to put him in possession of Achaia, and to avenge himself for this breach of faith Pompeius again began to intercept the Italian corn fleets. Fresh discontent appeared at Rome, and Octavian equipped a second fleet to sail against the naval chief; but after two battles of doubtful result, the fleet was destroyed by a storm, and Sextus was again left in undisputed mastery of the sea. Octavian, however, was never daunted by reverses, and he gave his favorite Agrippa full powers to conduct the war against Pompeius. This able commander set about his work with that resolution that marked a man determined not to fail. As a harbor for his fleet, he executed a plan of the great Cæsar; namely, to make a good and secure harbor on the coast of Latium, which then, as now, offered no shelter to ships. For this purpose he cut a passage through the narrow necks of land which separated Lake Lucrinus from the sea, and Lake Avernus from Lake Lucrinus, and faced the outer barrier with stone. This was the famous Julian Port. In the whole of the two years B.C. 38 and 37 Agrippa was occupied in this work and in preparing a sufficient force of ships. Every dockyard in Italy was called into requisition. A large body of slaves was set free that they might be trained to serve as rowers.
On the 1st of July, B.C. 36, the fleet put to sea. Octavian himself, with one division, purposed to attack the northern coast of Sicily, while a second squadron was assembled at Tarentum for the purpose of assailing the eastern side. Lepidus, with a third fleet from Africa, was to assault Lilybaeum. But the winds were again adverse; and, though Lepidus effected a landing on the southern coast, Octavian's two fleets were driven back to Italy with great damage. But the injured ships were refitted, and Agrippa was sent westward toward Panormus, while Octavian himself kept guard near Messana. Off Mylae, a place famous for having witnessed the first naval victory of the Romans, Agrippa encountered the fleet of Sext. Pompeius; but Sextus, with the larger portion of his ships, gave Agrippa the slip, and sailing eastward fell suddenly upon Octavian's squadron off Tauromenium. A desperate conflict followed, which ended in the complete triumph of Sextus, and Octavian escaped to Italy with a few ships only. But Agrippa was soon upon the traces of the enemy. On the 3d of September Sextus was obliged once more to accept battle near the Straits of Messana, and suffered an irretrievable defeat. His troops on land were attacked and dispersed by an army which had been landed on the eastern coast by the indefatigable Octavian; and Sextus sailed off to Lesbos, where he had found refuge as a boy during the campaign of Pharsalia, to seek protection from the jealousy of Antony.
Lepidus had assisted in the campaign; but after the departure of Sextus he openly declared himself independent of his brother triumvirs. Octavian, with prompt and prudent boldness, entered the camp of Lepidus in person with a few attendants. The soldiers deserted in crowds, and in a few hours Lepidus was fain to sue for pardon, where he had hoped to rule. He was treated with contemptuous indifference, Africa was taken from him; but he was allowed to live and die at Rome in quiet enjoyment of the chief pontificate.
It was fortunate for Octavian that during this campaign Antony was on friendly terms with him. In B.C. 37 the ruler of the East again visited Italy, and a meeting between the two chiefs was arranged at Tarentum. The five years for which the triumvirs were originally appointed were now fast expiring; and it was settled that their authority should be renewed by the subservient senate and people for a second period of the same duration. They parted good friends; and Octavian undertook his campaign against Sext. Pompeius without fear from Antony. This was proved by the fate of the fugitive. From Lesbos Sextus passed over to Asia, where he was taken prisoner by Antony's lieutenants and put to death.
Hitherto Octavia had retained her influence over Antony. But presently, after his last interview with her brother, the fickle triumvir abruptly quitted a wife who was too good for him, and returned to the fascinating presence of the Egyptian Queen, whom he had not seen for three years. From this time forth he made no attempt to break the silken chain of her enchantments. During the next summer, indeed, he attempted a new Parthian campaign. But his advance was made with reckless indifference to the safety of his troops. Provisions failed; disease broke out; and after great suffering he was forced to seek safety by a precipitate retreat into the Armenian mountains. In the next year he contented himself with a campaign in Armenia, to punish the King of that country for alleged treachery in the last campaign. The King fell into his hands; and with this trophy Antony returned to Alexandria, where the Romans were disgusted to see the streets of a Graeco-Egyptian town honored by a mimicry of a Roman triumph.
For the next three years he surrendered himself absolutely to the will of the enchantress. To this period belong those tales of luxurious indulgence which are known to every reader. The brave soldier, who in the perils of war could shake off all luxurious habits and could rival the commonest man in the cheerfulness with which he underwent every hardship, was seen no more. He sunk into an indolent voluptuary, pleased by childish amusements. At one time he would lounge in a boat at a fishing party, and laugh when he drew up pieces of salt fish which by the Queen's order had been attached to his hook by divers. At another time she wagered that she would consume ten million sesterces at one meal, and won her wager by dissolving in vinegar a pearl of unknown value. While Cleopatra bore the character of the goddess Isis, her lover appeared as Osiris. Her head was placed conjointly with his own on the coins which he issued as a Roman magistrate. He disposed of the kingdoms and principalities of the East by his sole word. By his influence Herod, son of Antipater, the Idumæan minister of Hyrcanus, the late sovereign of Judea, was made king to the exclusion of the rightful heir. Polemo, his own son by Cleopatra, was invested with the sceptre of Armenia. Encouraged by the absolute submission of her lover, Cleopatra fixed her eye upon the Capitol, and dreamed of winning by means of Antony that imperial crown which she had vainly sought from Cæsar.
While Antony was engaged in voluptuous dalliance, Octavian was resolutely pursuing the work of consolidating his power in the West. His patience, his industry, his attention to business, his affability, were winning golden opinions and rapidly obliterating all memory of the bloody work by which he had risen to power. He had won little glory in war; but so long as the corn fleets arrived daily from Sicily and Africa, the populace cared little whether the victory had been won by Octavian or by his generals. In Agrippa he possessed a consummate captain, in Maecenas a wise and temperate minister. It is much to his credit that he never showed any jealousy of the men to whom he owed so much. He flattered the people with the hope that he would, when Antony had fulfilled his mission of recovering the standards of Crassus, engage him to join in putting an end to their sovereign power and restoring constitutional liberty.