" Five standard years have passed since Darth Sidious proclaimed himself galactic Emperor. The brutal Clone Wars are a memory, and the Emperor’s apprentice, Darth Vader, has succeeded in hunting down most of the Jedi who survived dreaded Order 66. On Coruscant a servile Senate applauds the Emperor’s every decree, and the populations of the Core Worlds bask in a sense of renewed prosperity. In the Outer Rim, meanwhile, the myriad species of former Separatist worlds find themselves no better off than they were before the civil war. Stripped of weaponry and resources, they have been left to fend for themselves in an Empire that has largely turned its back on them. Where resentment has boiled over into acts of sedition, the Empire has been quick to mete out punishment. But as confident as he is in his own and Vader’s dark side powers, the Emperor understands that only a supreme military, overseen by a commander with the will to be as merciless as he is, can secure an Empire that will endure for a thousand generations … "

― James Luceno , Tarkin (Star Wars Disney Canon Novel)