|Headquarters||Onu-Koro (formerly), Onu-Metru|
|Goals||Protect Onu-Metru (formerly)|
|Allies||Toa Nuva, other Mata Nui Military forces|
|Enemies||Teridax, infected Rahi|
The Ussalry was founded during the Great War to defend Onu-Koro against the threat of Teridax's Infected Rahi. The organization was commanded by Onepu, who had the title as "Captain of the Ussalry". Prior to the arrival of the Toa Mata, the Ussalry found itself battling Kofo-Jaga. When Onu-Koro was stricken by a shortage of Lightstone, the resulting darkness encouraged Rahi attacks, forcing the Ussalry to become more vigilant.
After Lightstones were mined once more, the Ussalry assisted in the Battle for Kini-Nui. At that time, Infected Rahi amassed beneath Onu-Koro in caves, and the Ussalry defended their village until the Rahi retreated. The Ussalry then headed toward Kini-Nui. They arrived in time to save the Chronicler's Company from Infected Rahi, whom the Ussalry defeated with Bamboo Disks.
The Ussalry faced Kofo-Jaga and Makika that were driven from their habitats during the Bohrok Invasion. Later, they used the newly invented Boxor to defeat a group of Nuhvok in Le-Wahi and liberate Turaga Matau and the Le-Matoran who were under the control of Krana.
The Ussalry was ultimately unable to save Onu-Koro from Teridax's Rahkshi, who destroyed the village. This forced the Ussalry and the other Onu-Matoran to evacuate. The Matoran of Mata Nui then relocated to Metru Nui, where the Ussalry guarded Onu-Metru.
Ussalry members used Ussal Crabs as mounts and later the Boxor. They wield Bamboo Disks for defense that when not in use were strapped to their backs. The Ussalry also held torches or Lightstones while they patrolled Onu-Koro.
- Onepu (Captain)
- An unnamed member who wears a black Mahiki
- An unnamed member who wears a purple Matatu
- An unnamed member who wears a purple Komau
|Members||Damek | Kaj|
|Active||Ta-Koro Guard | Ga-Koro Guard | Gukko Force | Po-Koro Guard | Ussalry | Sanctum Guard|
|Disbanded||Chronicler's Company | Voya Nui Resistance Team|
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