Caesar reconciles the two most powerful men in Rome, Pompey and Crassus, and the three work together to get what each wants. Historians later call it the First Triumvirate.
This policy was to reconcile Pompey and Crassus, the most influential men in the city.
The alliance's early success set off a strong political backlash. Trust deteriorated through 50 BC and anti-Caesarian hardliners influenced Pompey, until Caesar was pushed into open rebellion in January 49 BC.
Based on Wikipedia: First Triumvirate
The early success of the alliance, however, triggered substantial political backlash.
Deteriorating trust through 50 BC, along with the influence of Catonian anti-Caesarian hardliners on Pompey, eventually pushed Caesar into open rebellion in January 49 BC.