Julius Caesar's planned invasion of the Parthian Empire
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|Caesar's planned invasion of Parthia|
|Part of the Roman-Parthian Wars|
|Operational scope||Dacia, Middle East and Central Asia|
|Planned||for 44 BC|
|Planned by||Roman Republic under Julius Caesar|
|Target||Burebista's Dacian kingdom, Parthian Empire, various other states and peoples|
|Executed by||Planned: |
|Outcome||Eventual cancellation and diversion of Roman forces among civil war parties|
Julius Caesar's planned invasion of the Parthian Empire was to begin in 44 BC; however, due to his assassination that same year, the invasion never took place. The campaign was to start with the pacification of Dacia, followed by an invasion of Parthia. Plutarch also recorded that once Parthia was subdued the army would continue to Scythia, then Germania and finally back to Rome. These grander plans are found only in Plutarch's Parallel Lives, and their authenticity is questioned by most scholars.
Preparation and invasion plans
There is evidence that Caesar had begun practical preparation for the campaign some time before late 45 BC. By 44 BC Caesar had begun a mass mobilization, sixteen legions (c.60,000 men) and ten thousand cavalry were being gathered for the invasion. These would be supported by auxiliary cavalry and light armed infantry.
Six of these legions had already been sent to Macedonia to train, along with a large sum of gold for the expedition. Octavius was sent to Apollonia (within modern Albania), ostensibly as a student, to remain in contact with the army. As Caesar planned to be away for some time he reordered the senate and also insured that all magistrates, consuls, and tribunes would be appointed by him during his absence. Caesar intended to leave Rome to start the campaign on 18 March; however, three days prior to his departure he was assassinated.
The expedition was planned to take three years. It was to begin with a punitive attack on Dacia under King Burebista, who had been threatening Macedonia's northern border. It has been suggested by Christopher Pelling that Dacia was going to be the expedition's main target, not Parthia.
After Dacia the army was then to invade Parthia from Armenia.[lower-alpha 1][lower-alpha 2] Here the ancient sources diverge. Suetonius states that Caesar wished to proceed cautiously and would not fully engage the Parthian army unless he could first determine their full strength. Although he implies that Caesar's goal was an expansion of the empire, not just its stabilization. Plutarch, however, describes a bolder campaign. As he writes that once Parthia had been subdued, the army would move through the Caucasus, to attack Scythia and return to Italy after conquering Germania. Plutarch also states that the construction of a canal through the isthmus of Corinth, for which Anienus had been placed in charge, was to occur during the campaign.[lower-alpha 3]
Plutarch's Parallel Lives was written with the intention of finding correlations between the lives of famous Romans and Greeks; for example, Caesar was paired with Alexander the Great. Buszard's reading of Parallel Lives also interprets Plutarch as trying to use Caesar's future plans as a case study in the error of unbridled ambition.
Some academics have theorized that Caesar's pairing with Alexander and Trajan's invasion of Parthia, near the time of Plutarch's writing, led to exaggerations in the presented invasion plan. The deployment of the army to Macedonia near the Dacian frontier and the lack of military preparation in Syria have also been used to lend support for this hypothesis. Malitz, while acknowledging that the Scythia and Germania plans appear unrealistic, believes they were credible given the geographic knowledge of the time.
Motivation for invasion
The public pretense for the expedition was that less than ten years prior in 53 BC an invasion of the Parthian Empire had been attempted by the Roman consul Marcus Crassus. It ended in failure and his death at the Battle of Carrhae. To many Romans this required revenge.[lower-alpha 4] Also Parthia had taken Pompey's side in the recent civil war against Caesar.[lower-alpha 5]
As Rome in 45 BC was still politically divided after the civil war, Marcus Cicero tried to lobby Caesar to postpone the Parthian invasion and solve his domestic problems instead. Following a similar line of thought in June of that year Caesar temporarily wavered in his intention to leave with the expedition. However, Caesar finally decided to leave Rome and join the army in Macedonia. A number of motivations have been proposed to explain his decision to continue his military career. After a victorious campaign he would have, as Plutarch wrote, "completed this circuit of his empire, which would then be bounded on all sides by the ocean" and return home with his lifelong dictatorship secured. It has also been proposed that Caesar knew of the threats against him and felt that leaving Rome and being in the company of a loyal army would be safer, personally and politically. Caesar may have also wished to heal the rift from the civil war, or distract from it, by reminding the populace of Rome of the threat of a neighboring empire.
In order to support a royal title for Caesar a rumor was spread in the lead up to the planned invasion. It alleged that it had been prophesied that only a Roman king could defeat Parthia. As Caesar's greatest internal opposition came from those that believed he wanted royal power, this strengthened the conspiracy against him. It has also been proposed that Caesar's opposition would be fearful of him returning victorious from his campaign and more popular than ever. The assassination occurred on 15 March 44 BC on the day the senate was to debate granting Caesar the title of king for the war with Parthia. However, some of the aspects of Caesar's planned kingship may have been invented after the assassination in order to justify the act. The relationship between the planned Parthian war and his death, if any, is unknown.
After Caesar's death Mark Antony successfully vied for control of the legions from the planned invasion, still stationed in Macedonia and he temporarily took control of that province in order to do so. From 40 to 33 BC Rome and Antony in particular would wage an unsuccessful war with Parthia. He used Caesar's proposed invasion plan, of attacking through Armenia, where it was felt the support of the local king could be relied on. In Dacia, Burebista was to die the same year as Caesar, leading to the dissolution of his kingdom.
- Caesar's invasion plan used more cavalry than Crassus's and also approached through the friendly territory of Armenia. It is believed that both these factors would have improved his chances of success relative to the earlier attempt.
- From 46 BC Quintus Caecilius Bassus had control of Syria. Bassus had supported Pompey in the civil war, had murdered caeser's cousin, Sextus Caeser and defeated the new governor Caeser had sent.
- Nicolaus of Damascus also mentions an intention to continue to India after Parthia.
- According to Dio, the Roman people's desire for this revenge led to Caesar being given sole command of the Parthian campaign by a unanimous vote.
- Parthia was aware of the political divide in Rome and that Caesar's victory in the civil war may lead to invasion.
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- Plutarch, Caesar 58.6
- Suetonius, The Life of Julius Caesar 44
- Plutarch, Caesar 58.6,7
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- Appian, The Civil Wars 2.110
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