Tan'rith Legion

, also known as The First, are a Legion of the United Sangheili Republic raised from the world of High Promissory, and the first Sangheili legion to incorporate human warriors.

History
The history of the Tan'rith Legion lies with that of High Promissory. Formerly a boot-strap human colony, it was set up on a world where the Sangheili had begun the terraforming process. Invaded by the Sangheili military, after a hard fought battle, the colonists were defeated, and the Sangheili began the process of enforcing their will and culture across the planet. Sangheili had long respect humanity as an enemy, and the fervent defence of their homes, in the face of overwhelming odds inspired the commander of the local garrison to petition Republic military command to raise a legion on High Promissory. Sangheili often raised legions of conquered client races during the days of the Covenant. Initial applicants were head hunted from numerous prisoners of the war. Most preferred freedom and the opportunity to defend their home, even if they weren't in control of it themselves, and others were enticed by the prospect of higher places in the new social order. The first unit raised was a single Warrior Creche, staffed by members of the local Sangheili garrison.

The Warrior Creche was lightly equipped, with improvised armour and small arms, but trained hard under the watchful eye of their commander. Their moment came when raiders from the Storm Covenant attempted to waylay an arms shipment on the surface of High Promissory. The Creche were the first military unit on the scene and engaged the raiders in combat around the desolate slum where they'd secured the shipment. Human knowledge of these slums, and how to defend them resulted in the Storm Covenant suffering high casualties and leaving without their prize. Republic Army Command learned of this, and authorised the Warrior Creche to be expanded to a full Legion, complete with armour and heavy arms. Specialised armour was developed and built locally, and Sangheili warriors from battle hardened legions were transferred in to train and lead the Legion.

1 Field Group
Mixed grenadier/scout/armour