Corporal Tai Kaliso was a Gear soldier who hailed from Irohma Island in the South Islands. He joined the Coalition of Ordered Governments army after his hometown was wiped out by Union of Independent Republics forces during the Pendulum Wars.
A boulder of a man, Tai's muscular appearance stands in contrast to his quiet, meditative personality. Tai was descended from a long line of men who viewed themselves not just as fighters but as warriors. This lineage molded Tai into a warrior-philosopher with a spiritual view of war that often caused odd glances from his squadmates.
However, they liked and respected him, even if they didn't always understand him. Tai and Marcus Fenix have a long history of saving each other's lives during the Pendulum Wars, and served alongside each other several times during the Locust War.