Great Disaster

The Great Disaster was a battle fought between thousands of Guardians and the Hive to take control of the Moon. Shortly after discovering the Hive on the moon, the Vanguard had ordered a full-scale assault on the moon to establish a beachhead, but the Guardians who arrived fell by the hundreds, as leading the Hive army was the god-king Crota, an invincible knight who devoured the light of the Guardians.

In the aftermath, the Vanguard classified the Moon as forbidden, and not to be visited unless absolutely necessary. One of the survivors of the battle, Eriana-3, swore revenge against Crota and assembled a team of Guardians to enter the Hellmouth alone. Only Eris Morn survived that venture.

Guardians

 * Eriana-3
 * Wei Ning

Hive

 * Crota, Son of Oryx