Millendium
A group of Sii with a specific purpose, working together for the benefit of the whole. Similar to a "division" in a military unit. The millendium is named after a being named the Millendar on planet Graz'nar. This alien is essentially a long serpent with thousands of moving legs, all of which needed to move in perfect unison for the creature to properly function. If even one leg was not functioning properly, the whole being was rendered immobile. Needless to say, it was deemed unsuitable as a host form until further research was complete. However, the concept of "parts of a whole working in perfect harmony" appealed to Jain and the other Ka'lee in the Chai'din faction, who were trying to accomplish just that with the Ka'lee from the many different factions. And thus the Millendium were born - parts of the whole, each working at different tasks, but for the ultimate benefit of the whole faction.
See also: "siihelp millendium"