New Llanelli (or Laqil by the Sangheili) was a human colony world located in the Brunel system formerly governed by the Unified Earth Government. New Llanelli originally was a small agrarian world.
- Main article: Battle of New Llanelli
New Llanelli was where Avu Med 'Telcam and the Servants of the Abiding Truth would go through with being supplied by the Office of Naval Intelligence through Kilo-Five. Once the UNSC Infinity destroyed a majority of the Servants forces, Serin Osman planned on hiding their last four frigates on the planet. After the failing Blooding Years on Sanghelios, Avu Med 'Telecam fell back to New Llanelli with what few ships and troops he had left to regroup and re-arm.
New Llanelli only had a total of three settlements.