The Gallic Wars 
(58-50  BCE) 
  
The  German Threat 
Gallia  est omnis divisa in partes tres... 
  With  these words, Caesar begins the Bellum Gallicum, his own account of the Gallic  Wars. The books of this unique work, which were written at the end of each  year, were sent to the Senate in Rome, probably as supplements to an eventual  application for a Triumph. The excuse for the war was the supposed crossing of  the Helvetii into Roman sphere of influence and the invasion of Gaul by the  German tribe of the Suebii. The reality was that Caesar needed to build up an  army and a reputation to match Pompeius's, which would secure him another  Consulship upon his return to Rome.  
  There  can be no doubt that Caesar was an extremely competent General, probably one of  the best ever. He understood strategy and tactics, and he could handle the  brutish and greedy legionaries of his time. He was almost always aware of the  movements of his enemies and usually secured both communications and supply  lines in a masterly fashion. His natural energy was turned into the feared  celeritas of Caesar, a swiftness of action that stunned his contemporaries.  Almost paradoxically, he could combine this swiftness with extraordinary  patience, and as a result was almost always able to choose the time and place  for his battles, or regain the initiative even in the most difficult  situations.  
In  58 BC, he moved across the borders into Gaul, defeating the westward migration  of the Helvetii and then crushing the Sueban mercenaries under Ariovistus. With  his victory against the Germans, Caesar firmly cemented his position as Marius'  heir. In the following year he subdued the Belgic tribes in the north, while  his lieutenant Publius Licinius Crassus pacified present day Normandy and  Brittany.  
The  Meeting at Lucca 
  Meanwhile,  the relations between the triumvirs had become strained. Pompeius was becoming  increasingly jealous of Caesar's successes while Crassus returned to his former  enmity against Pompeius. During Caesar's tenure as Consul, Cicero had been  sacrificed to his enemy Publius Clodius (of the Clodius scandal) and forced to  go into exile. A year later, however, Pompeius secured Cicero's return, a  decision that antagonized Clodius.  
Cicero  first initiative was to procure the cura annonae (grain distribution rights)  for Pompeius for a period of five years, an important concession which is  unlikely to have pleased Caesar. The situation grew more tense when the  Optimates, supported first by Clodius and later by Cicero, attacked the lex  Julia Agraria (land bills) of 59. To bring the matters to a head, one of the  potential consuls for 55 threatened to take away Caesar's command.  
In  May 56, Caesar invited Pompeius and Crassus to a meeting at Lucca just inside  the borders of Cisalpine Gaul, where he succeeded in patching up the alliance.  Almost 200 senators participated in this meeting, including governors from  Sardinia and Spain -- one would be  
  forgiven  for thinking the Senate had moved to the provinces. It was arranged that  Pompeius and Crassus be Consuls for 55, and Caesar's command in Gaul was  prolonged for a further five years. Pompeius received a five-year term in Spain  and Crassus a similar tenure in Syria. In addition, it was agreed that Caesar  would be allowed a second term as Consul upon the termination of his Gallic  command.  
Despite  bitter resistance from Cato and the Optimates, the elections of Crassus and  Pompeius were secured and Caesar's command prolonged, after which Crassus  travelled to the east leaving Pompeius to take on the duties of Consul alone.  But by the end of the year Pompeius had difficulties controlling the Consular  elections for 54. However skilled Pompeius might be on the battlefield, his  skills did not extend to the political arena.  
Further  Operations - The Channel Crossings 
  In  56 BC, the operations in Brittany continued. The Veneti had revolted, supported  by the Morini and Menapii from the Lower Rhine region. Caesar destroyed the  Veneti and the next year conquored the Morini and Menapii and virtually  exterminated two German tribes, the Usipetes and Tencteri, who had crossed the  Rhine to help the rebels. He then bridged the Rhine and raided Germany before  crossing the Channel to Britain. The Roman people, duly impressed by these  feats, voted him twenty days of public thanksgiving.  
The  reality was that things were beginning to get out of hand. His expeditions to  Germany and Britain had both been brief and Gaul was still far from pacified.  It must have been dawning on him that something more than his previous (almost  terrorist-like) lightning strikes would be required, if he were to subdue the  Celts. Nevertheless, he prepared to launch a new expedition on Britain the next  year.  
800  ships and 5 Legions were invested in the second Channel crossing, a record  which would stand until the Normandy landings of the Second World War. But as  Plutarch laconically tells:  
He  passed thither twice from that part of Gaul which lies over against it, and in  several battles which he fought did more hurt to the enemy than service to  himself, for the islanders were so miserably poor that they had nothing worth  being plundered of. When he found himself unable to put such an end to the war  as he wished, he was content to take hostages from the king, and to impose a  tribute, and then quitted the island. (Plutarch) 
  Caesar's  return to Gaul marks a turning point in his life, and a period of personal  crisis. In the letters waiting upon his return are news of the deaths of two of  the most important people in his life - his daughter Julia, and his mother  Aurelia. The short-term effects of his personal loss are visible in the  careless dispositions of his armies for winter quarters. This uncharacteristic  lapse forces him into a very circumstantial and untrustworthy, but meticulous  explanation for the disposition of his troops in the winter of 54. But the  facts are unavoidable, his sloppiness cost the lives of 15 cohorts, or at least  10000 men. He drowned his sorrow in the blood of the Gauls, waging a war of  extermination against the rebellious Eburones and bridging the Rhine for a  second raid.  
Politically,  the death of Julia meant that the bonds between Pompeius and Caesar were  weakened. Pompeius refused further offers of marriage with women within  Caesar's family, choosing instead to marry Cornelia, daughter of the Optimate  Metellus Scipio. Pompeius lingered in his villa on the outskirts, making no  effort to stop the growing anarchy. Street violence made elections impossible,  and as early as 54, there was talk of making him Dictator. The next year,  Crassus died at the battle of Carrhae, effectively dissolving the triumvirate.  
However,  neither Pompeius nor Caesar felt ready for the break that the Optimates were  hoping for, and Pompeius readily complied with Caesar's request to raise 3  Legions for his campaigns against the Gauls in 53. In January 52, Clodius was  murdered by the armed followers of the Optimate Titius Annius Milo and in the  riots that followed, the Senate house burnt down. Finally, Pompeius intervened  and forced the Optimates to choose between himself and Milo. He was elected  sole Consul, with responsibility for re-establishing law and order.  
The  Gallic Revolt 
  In  the meantime, Caesar was forced to devote his full attention to the Gallic  tribes. At last, the people of central Gaul had found a leader who could unite  them - the Arvernian Vercingetorix. Although Caesar's career is on the line, he  re-enters the Gallic scene seemingly untouched by a year and a half of personal  crisis.  
Vercingetorix  favored a "scorched earth" policy, but was unable to persuade his  countrymen to adopt it wholeheartedly. Instead, the Bituriges insisted on  standing siege in their town of Avaricum, which was taken by Caesar within a  month. The Romans followed this by besieging Vercingetorix in Gergovia, but  their attempt to storm Gergorvia was repulsed with heavy losses -- the first  outright defeat that Caesar had suffered in Gaul. After repelling an attack  while his army was on the march, he then laid siege to Vercingetorix in Alesia.  Like Gergovia, Alesia was a position of great natural strength, but the  relieving force was repulsed and dispersed by Caesar and Vercingetorix was  forced to capitulate.  
This  rebellion occurred at a time which was most fortunate for Caesar, so much that  one may be tempted to allege that Vercingetorix was a Caesarean agent. In any  case, the suppression of this revolt and others in 51 BC was so efficient that  the province of Gaul remained pacified, even during the following decades of  civil war.  
Caesar's approach in these years was a mixture of  reconciliation and terror. When he captured the natural fortress of Uxellodunum  he had the survivors' hands cut off. Whatever one may feel of his methods, the  policy was effective and gave him the peace needed to concentrate on events in  Rome.  
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