Battle of Fumirole

The Battle of the Unidentified Human Colony was an engagement fought between the UNSC and the Covenant.

Battle
Not much is known about the battle itself, other than Thom-293 sacrificed himself to destroy a CCS-class Battlecruiser holding position close to the battle.

Trivia

 * This is possibly the battle that Catherine-B320 lost her arm.
 * This is possibly the battle where Thom-293 died.