Matoran-Rahi War

The Matoran-Rahi War was a conflict between the matoran of Mata Nui and the local rahi, enslaved by Makuta Teridax to do his will. It took place prior to and during the quest for the masks. Teridax was attempting to exert his control over the matoran, and thus turned the island's rahi against the villagers. However, guided by the wisdom and courage of the Turaga, the matoran refused to cower to the threat. Defense forces sprung up in Ta-Koro, Le-Koro, and Onu-Koro in the forms of the Ta-Koro Guard, Gukko Force, and Ussalry, respectively.

It ended when the Toa Mata defeated Teridax and ended the Rahi threat.

Conflicts

As the threat of rahi increased, several of the bravest matoran organized resistance. Jaller organized the Guard, Kongu created the Gukko Force, and Onepu formed the Ussalry.

where they were put to work. The Force fought back, shooting the rahi out of the sky with Gukko Birds manned by two matoran. Turaga Matau and many of the matoran from the village were captured during the fighting. They remained until Toa Lewa rescued them, with help from Toa Onua.
 * In Le-Koro, Nui-Rama battled the Le-Matoran, carrying away villagers and taking them to their nests,

Ussalry rode Ussal Crabs into battle to combat the forces of Teridax. Although the city itself was at ease, the tunnels and mines were filled with danger. The Ussalry fought vailiantly against the threat, but were outnumbered greatly. At the climax of the war Onepu was unable to send even a single regiment to help Ta-Koro.
 * In Onu-Koro, the matoran encountered tunneling rahi who threatened the matoran's mining work. Onepu's

Ta-Koro than any other place in all of Mata Nui. The Ta-Koro Guard maintained outposts all over teh city, and battled the rahi everywhere they appeared. Fighting was fircest here, with massive battles staged between the matoran and Teridax's minions. The Charred Forest, once a peacful jungle, was reduced to its present state due to the fighting. Eventually, Jaller was forced to abandon most of the outer defences (Such as the Tren Krom Break), and fall back behind the city. However, the war ended before the rahi could take their fight to the city.
 * Jaller faced massive opposition from all kinds of rahi in Ta-Koro. Teridax poured more rahi into

Ta, Le and Onu Koro. Ga-Koro was ravaged by rahi, and the hut containing Turaga Nokama and the remaining villagers was sunk under the water. When the pump was restored, the house returned to the surface. The city was saved by Macku, the only villager to escape the battle. She, along with Hali, created the Ga-Koro defense force, which was means to protect the city from future harm (although only marginally effective). Po-Koro largely escaped the rahi, but Ko-Koro had to deal with its share. Unlike the other villages, Ko-Koro had no force, they simply trapped the rahi. Matoro was the leader of the band.
 * The other three Koro faced war as well, although none possessed the central role or prestige of

Jaller appears to have been the central commander of the Matoran forces during the war, althought the Koro were independent and free to do what they pleased. He sent out help to other Koro as needed, and requested help from other villages as well. He is known to have sent some of the Ta-Koro guard to Ko-Koro to assist in the defence, but it is thought that they were slain by rahi.

Leaders

Matoran
 * Jaller
 * Onepu
 * Kongu
 * Macku
 * Hali
 * Matoro