thereby incurring a charge of treason. Henceforth it would be a trial of strength: a civil war.
That war was to be fought on several fronts. In Italy Caesar encountered little opposition. Town after town opened its gates to him without a struggle; when he was called upon to fight, his battle-hardened troops were more than a match for any that might be ranged against them. Only two months after the Rubicon crossing the two consuls fled to Dalmatia, where they were shortly joined by Pompey himself. Caesar did not pursue them at once, since they remained in control of the Adriatic; instead he set off by land to Spain, the heartland of Pompey’s power in the west. On the way he stopped briefly at the free city of Massilia (Marseille) and, finding the population loyal to Pompey, placed it under siege, finally crossing the Pyrenees with an army of 40,000 men. Against him were not less than 70,000, commanded by three of Pompey’s leading generals, but he effortlessly outmanoeuvred them until, finding themselves encircled, they capitulated without further resistance. By the time he returned to Massilia that city too had surrendered. Now at last he was ready for the final round of the struggle.
With his enemies satisfactorily scattered, Caesar had no difficulty in having himself elected consul once again in 48 BC . He then pursued Pompey, who had by this time gone on to Greece. An attempt to blockade Pompey’s key base and bridgehead at Dyrrachium (now Durrës in Albania) was a failure, but 200 miles away to the southwest, on 9 August 48 BC on the sweltering plain of Pharsalus in Thessaly, the two armies met at last. Caesar–aided by the young tribune Mark Antony, who commanded his left wing–once again won an easy victory. Pompey, we are told, was one of the first to retreat. He escaped to the coast and thence to Egypt, whose boy king Ptolemy XIII had been his staunch supporter, supplying him with ships and provisions; but Ptolemy was anxious to be on the winning side, and when Caesar, in hot pursuit of his enemy, arrived in turn at Alexandria it was to find that Pompey had been assassinated.
Caesar’s journey, on the other hand, had not been in vain; Ptolemy had recently banished his twenty-one-year-old half-sister, wife and co-ruler, Cleopatra, and arbitration was urgently needed. In this case it took a somewhat unusual form: Cleopatra returned secretly to Egypt to plead her case, whereupon Caesar–now fifty-two–instantly seduced her and took her into his palace as his mistress. Ptolemy, furious, laid the palace under siege, but a Roman relief force soon came to the rescue and in March 47 BC defeated the Egyptians in battle. Ptolemy fled and was drowned, appropriately enough, in the Nile; Caesar established Cleopatra on the throne with her younger brother, Ptolemy XIV, as her co-ruler, Egypt becoming a client state of Rome. He himself had one further task before he returned to the capital: the proper chastisement of Pharnaces, son of that old troublemaker Mithridates of Pontus, who was showing every sign of taking after his father. With seven legions he marched quickly northwards through Syria and Anatolia. The expedition was very nearly a disaster. At Zela (the modern Zile) in central Anatolia, on 2 August, just as the Roman army was pitching its camp, Pharnaces attacked. The legions were taken by surprise; only their discipline and experience won the day. It was then, Plutarch tells us, that Caesar reported his victory back to Rome with the words which used to be known to every English schoolboy:
veni, vidi, vici
–‘I came, I saw, I conquered.’ 23
Pompey was dead, but his two sons remained undefeated and there were two more campaigns to be fought–the first in North Africa, the second in Spain–before the civil war could be considered properly at an end. As always, Caesar now faced the problem of finding land on which to settle the legionaries who had served him so well. He established