The Inter-Stellar Union (ISU)
The Inter-Stellar Union was initially formed by the Reln and Humans, established to unify the races and end the border wars that had plagued civilized space. The ISU does not replace individual racial governments, but acts as a mediator between the races, promotes trade and economic development, and unifies them against external threats. The Union Guard is the specialized force set up by the ISU to serve as an elite interstellar security force and to conduct operations and special investigations.