From Halopedia, the Halo wiki
Conflict:
Human-Covenant War[1]
Date:
2551[1]
Location:
Concord[1]
Outcome:
UNSC victory
United Nations Space Command
Covenant
Mjolnir operators
Unknown
The defense of Concord was an engagement of the Human-Covenant War in 2551 between the United Nations Space Command and the Covenant on the human colony planet of Concord.[1] During the battle, several test models of the MJOLNIR Powered Assault Armor [GEN2] were utilized, albeit without their full combat suites. Notably, the VENATOR-class Mjolnir—manufactured by Concord's Lethbridge Industrial—gained prominence during the defense of Concord due to the armor's effectiveness in hand-to-hand and single-enemy combat.[1]
The engagement likely resulted in a victory for the UNSC, as Concord survived the Covenant War and remained inhabited shortly after the war.[2]