Answer:
Pompey only agreed to join the First Triumvirate so that his goals in Rome were supported.
Step-by-step explanation:
First Triumvirate was a political alliance between Marcus Licinius Crassus, Pompey, and Julius Caesar. The idea was for the three men to help each other to achieve the goals and proposals they had for Rome and even for themselves. At first, Pompey did not want to participate in the First Triumvirate, because he did not support Crassus.
Pompey was a great general and Crassus was an extremely wealthy and influential man. Pompey wanted the Roman Senate to give land to veterans of his army. So they could colonize land in the name of Rome, in the eastern territories. This request was denied, which made him try to make alliances with powerful people like Julio Cesar and Crassus, so that this request could be considered.