The Alsakan Conflicts and depredations by slavers and pirates who came outside of the Galactic Republic, caused devastation in the Expansion Region areas of The Slice and forced settlers in those expansion areas west of the Corellian Run. Prosperity pushed colonization into and beyond the Mid Rim.
- The Complete Star Wars Encyclopedia
- The Essential Atlas
- The Essential Guide to Warfare
- Star Wars: Edge of the Empire Core Rulebook
- Star Wars: Age of Rebellion Core Rulebook
- Strongholds of Resistance