Death Star
The first Death Star is depicted in various sources of having a crew of 265,675, as well as 52,276 gunners, 607,360 troops, 30,984 stormtroopers, 42,782 ship support staff, and 180,216 pilots and support crew. Its hangars contain assault shuttles, blastboats, Strike cruisers, land vehicles, support ships, and 7,293 TIE fighters. It is also protected by 10,000 turbolaser batteries, 2,600 ion cannons, and at least 768 tractor beam projectors. Various sources state the first Death Star has a diameter of between 140 and 160 kilometers. There is a broader range of figures for the second Death Star's diameter, ranging from 160 to 900 kilometers.
Galactic Empire (Star Wars)
In "Star Wars", Grand Moff Tarkin explains the Empire's military doctrine of peacekeeping, internal security, and counter-insurgency; describing its state terrorism-philosophy as ""rule through fear of force rather than force itself"". The instrument of this power is the military, which includes the Imperial Stormtroopers, a massive fleet of 25,000 Star Destroyers, and the Death Star, a moon-sized superweapon capable of destroying entire planets. Plans for the Death Star first appear (in universe chronology) in "Attack of the Clones" and construction begins at the end of "Revenge of the Sith".