- An orbital bombardment of the planets in the Uba system, a preemptive strike by the Republic to deter the native Ubese from continuing to build banned weapons, ignites superweapon caches that engulf the planets in radioactive firestorms. The native Ubese are nearly exterminated by the event, with the only survivors on Uba IV; some are relocated to the Ubertica system, but the event sparks a deep-seated hatred of the Republic among the Ubese.
- Alien Encounters
- Alien Anthology
- The New Essential Chronology
- The Essential Atlas