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Humanity hoped that when they finally met intelligent alien life, it would be a peaceful and mutually beneficial interaction. It was not.

START DATE: February 11th, 2525
END DATE: December 11th, 2552




The UNSC managed many victories during the Human-Covenant War.  Despite that, the Covenant slowly pushed further into human-occupied space.  That was because while a UNSC victory meant a colony was merely spared from utter destruction, a Covenant victory meant total annihilation.  UNSC victories never meant gaining ground, only slowing down their loss.