United Nations Space Command Xeno Legion

The, sometimes referred to more simply as the X Legion, is a unit of the United Nations Space Command Army, and is unique is that it's recruitment is open to non-UNSC citizens, and non-human races. Formed in part as a response to growing numbers of non-human refugees, the X Legion offers United Earth Government citizenship to serving personnel, or those wounded in action. Despite what is seen as an intelligence liability, X Legion recruitment is closely monitored by the Office of Naval Intelligence, and results in a clean recruitment. Race is not considered for any rank, and non-human races are kept at a recruitment percentage of less than 15%.

Despite their recruitment from humans and non-humans outside of UEG territory, the X Legion are hard fighting unit, known for their ferocity and tenacity under fire, even fighting for a homeland that's not their own. The X Legion has distinguished itself several times in battle, and features a variety of sub-units, including infantry, mechanised, airborne, combat engineers, and special forces. One of the more notable units is the hard fighting Crimson Knights, known for their ferocity on the field of battle.