All this changed in the Cold War era when the Sith Empire invaded Corellia. After the Galactic Republic established a beachhead at the Blastfield Shipyards, the Sith were quick in securing Coronet Shipping as a rapid response staging area for themselves. The main ground approaches to these landing pads were destroyed by Imperial forces which made the area inaccessible to infantry or walker units. Aerial patrols also kept Republic assault shuttles from approaching the site and protected the Empire's elite troops.
- Star Wars: The Old Republic Explorer's Guide