Orion VII is the seventh planet in the Orion System in the Earth Alliance and the site of one of several Earth Alliance colonies in the system. Located near the border with the Centauri Republic, Orion VII quickly became one of the key trade centers between the Alliance and the Republic since the colony's founding in 2178.
In 2260, at the onset of the Earth Alliance Civil War, Earth Alliance Resistance leaders stayed at the colony. The EAS Alexander under General William Hague met with them, however, upon leaving the ship was ambushed by loyalist forces by the EAS Clarkstown. Hague did not survive, and Major Ryan took command. He attempted to flee without returning fire with the main batteries, resorting to interceptors and a fighter screen only. When the Clarkstown persisted, inflicting damage that threatened to cripple the ship, Ryan was forced to open up with aft batteries, destroying the Clarkstown completely. After retrieving its fighters, the Alexander jumped out of the system bound for Babylon 5.
Shortly afterwards, under order from EA President Clark, Earthforce began bombing civilian targets on the Mars colony in retaliation for Mars Provisional Government head Xavier Montoya's refusal to enact Clark's Martial Law Decree. In protest, Orion VII along with Proxima III declared independence from the Earth Alliance, setting themselves up as independent states until such time as Clark was impeached. Just after the announcement the EAS Churchill also left Orion VII for B5 after intercepting transmissions relayed to the EAS Agrippa and EAS Roanoke to seize B5 and arrest the command staff.
ISN received word of Orion and Proxima's secessions but was ordered by Earthgov not to report it. When some of the reporters attempted to breach the gag order armed troops moved in on the ISN Broadcast Centre in Geneva, forcing the station off the air. By the end of the day, Babylon 5 had also declared its independence.
- Flame birds: The symbiotic race called Vindrizi claimed that these creatures existed on the planet at some point in the last half million years.