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 * Construction Platform 966A is Decommissioned and abandoned.
 * Madrigal is glassed by the Covenant.

January

 * January 30: James Gregory Cutter turns down a command position on board the destroyer.

February

 * February 13: The Battle of XI Boötis A takes place, resulting in a UNSC victory.

December

 * December 5: Edward Buck enlists in the UNSC Marine Corps.

Unknown
Misriah Armory manufactures Mark V(m) MJOLNIR Powered Assault Armor