The asteroids in this belt surround the planets in this system like a vale of protection. Making trips to and from the planets quite dangerous, but this also serves as a very useful defensive aid. People wishing to attack Anzat would have to bring fleets of ships across this belt of asteroids which would indeed be a perilous journey.
Historians only record once that an asteroid crashed into the only moon in this system. This caused a catastrophic event that caused major environmental problem on the planet for a short period of time. This fallowed a near seven day long blackout after the asteroid impacted in the mountains.