2546


 * Sargasso is invaded by the Covenant. The Type-46 Infantry Support Vehicle is first encountered by UNSC Defense Force personnel during the battle.
 * New Llanelli is attacked by the Covenant, who are victorious and glass the planet.
 * Lydus, a Jiralhanae Chieftain, is recorded to have left the Oth Sonin system for the first time.
 * The UNSC Argent Moon is commissioned into service.