Indie troops attacked the main tribe defenses via an amphibious landing, overwhelming the tribal forces with their superior technology. They reached the home village of Tai Kaliso, and wiped out everyone there, maiming many of the bodies. The 26th Royal Tyran infantry fought the UIR on the island. At least fifteenth Gears where killed on the island of Irohma.
While the main battle went on, Tai was using guerrilla tactics against the UIR forces, and was able to stalk and kill an entire enemy squad in a matter of seconds. However, he later discovered what the UIR had done to his home village, and was consumed with grief. He continued to track and kill enemy soldiers, until he encountered Cpl.Marcus Fenix of the 26th Royal Tyran infantry, who had come to the island to repel the UIR invasion. Marcus offered to Tai an opportunity to join the COG as a Gear and gain revenge on the UIR for destroying his home, an offer which Tai accepted.