It's the oldest trick in the book, dating back to Roman times -- creating the enemies you need.
In 70 BC, an ambitious minor politician and extremely wealthy man, Marcus Licineus Crassus, wanted to rule Rome.
Just to give you an idea of what sort of man Crassus really was, he is credited with invention of the fire brigade. But in Crassus' version, his fire-fighting slaves would race to the scene of a burning building whereupon Crassus would offer to buy it on the spot for a tiny fraction of it's worth. If the owner sold, Crassus' slaves would put out the fire. If the owner refused to sell, Crassus allowed the building to burn to the ground.
By means of this device, Crassus eventually came to be the largest single private landholder in Rome, and used some of his wealth to help back Julius Caesar against Cicero.
In 70 BC Rome was still a Republic, which placed very strict limits on what rulers could do, and more importantly NOT do. But Crassus had no intentions of enduring such limits to his personal power, and contrived a plan.