Pompeii and crassus disagreed on whether to set up a military fortress for the restoration of the Egyptian king, and their relationship deteriorated again. Finally, Pompeii even claimed that his life was threatened by crassus's spies. At the same time, Akno Barbus, a member of the Senate and the opposition party, issued a statement that if he was elected consul in 55 BC, he would immediately recall Caesar from Gaul.
Caesar was focusing on Gaul affairs at this time. He wanted to ensure the stability in the rear, so he took action to ensure the unity of the "Trilateral Alliance". In order to mend the relationship between the "Big Three", in the spring of 56 BC, Caesar invited Pompeii and crassus to meet secretly in Lucca, north of Idalarea. In order to please the three rulers, about 120 members of the Senate also defected to Lucca. The Lucca Conference made the following resolution: In 55 BC, Pompeii and crassus ran for consul, with the purpose of preventing Caesar's arch-enemy domick uz from being elected. After the expiration, according to the results of the lottery, they ruled Syria and Spain for five years respectively. Caesar will continue to serve as governor of Gaul for five years according to the Vattinius law.
After returning to Rome, Pompey and crassus began to implement the resolution reached during their talks: they became consuls together in 55 BC. Tribune newspaper Traiber news proposed a bill to appoint them to serve in the provinces for five years. Crassus will become the Syrian governor. Pompeii became the governor of Spain, so he could leave his local office and be managed by a deputy, so he could stay near Rome. Then the two governors jointly proposed a law to extend Caesar's term in Gaul for another five years. Through this meeting, the rift between the "Big Three", especially between Caesar and Pompeii, was mended, and the "first three-headed alliance" was consolidated again.
This stability lasted for about two years. In 54 BC, Pompeii's wife Julia died, and the only connection between him and Caesar was cut off. At this point, crassus is ambitiously preparing to conquer the Parthian Empire. Compared with the two allies, crassus lacks brilliant achievements. The only thing worth mentioning is that it won a slave war, and it was defeated repeatedly in the early stage of the war. Only by persisting in the end did it win. Crassus's power was established by his own money and political means, not by brilliant military exploits. As later historians commented: In the "first three alliances", Pompeii's military achievements were unparalleled, and Caesar's wisdom was obvious to all. If crassus wants to be on an equal footing with the former two, he must do something that they don't do or are too lazy to do.
According to records, crassus treats people affably. Whether the other party is a noble congressman or a famous general, a humble businessman, a poor beggar, or a slave who doesn't look twice, he can get a warm smile, cordial care and very generous assistance from crassus. The poor worship crassus and almost regard him as a god. But in the eyes of Caesar and Pompey, crassus may be just a political speculator with a bag full of gold coins. In the chaotic and changeable political arena in the late Republic of China, only military commanders with brilliant achievements can shine brilliantly. That is to say, among the "Big Three", only crassus can't dominate the future fate of Rome, and no matter who wins in the competition, Pompeii or Caesar, crassus can only come second. In order to gain the same power as the two allies, crassus just finished his term as Syrian governor, and launched an expedition to Rome's ancient rival Parthian Empire in the East before the time was ripe.
Parthia, also known as rest, was originally founded by a tribe in the northeast of the Persian Empire, the Pani people. The Persian Empire was conquered by Macedonians and became a part of the Alexander Empire. After Alexander's death, his empire was divided into three main parts: Ptolemy Kingdom in Egypt, Antioch Dynasty in Macedonia and Seleuc Empire centered on Syria. The Seleucid Empire has the largest territory, extending from the eastern Mediterranean coast to Persia. Later, the Persian governor of the empire rebelled, and the territory was split forever. The Pani people gradually unified the Persian mainland, successively conquered the vast areas as far north as the Caucasus, west to the Euphrates River, south to the desert and east to the Afghan plateau, and established a powerful Parthian empire. It is worth mentioning that Armenians, the vassal of Parthia, once rose and annexed the northwest of Parthia Empire. In 66 BC, Pompeii conquered Bendu, led the troops to pursue the remnants of the enemy in the east, defeated the newly rising Armenians here, and the Parthian Empire was able to recover its territory. Parthia later fought for the throne and the civil war broke out. One of them asked the Roman governor of Syria for help. The Roman army had marched, but it was ordered by the Senate to stop, which led to the failure of Prince Mithradas who asked for help and was executed.