Near the Imperial Administration Spire there is a garrison of Stormtroopers ready to be deployed anywhere on the planet. Their main function is to guard the Spire from sabotage and rebel hit-and-run attacks.
At full strength, the garrison consists of two legions or approximately 10,000 Stormtroopers, a company of AT-STs, and a squadron of Lambda class shuttles for transport. Currently, only two battalions of Stormtroopers (~800 men) remain attached to the garrison, the rest having been deployed to replace the troopers lost in the destruction of the Death Star. Most of the AT-STs and shuttles were also taken, with only four of each remaining. Though their numbers are reduced, troopers training at the nearby Urban Warfare Training Academy can be called upon to bolster their ranks in an emergency.