- June 7: Preston Cole appears before a board of inquiry at Luna OCS Academy to testify about a series of incidents involving the impregnation of Admiral Konrad Volkov's daughter Inna Volkov. Cole is cleared of any wrongdoing.
- August 17: Preston Cole and Inna Volkov are married.
- December 12: Inna Volkov gives birth to Ivan Troy Cole. Knowing the child is not biologically his, Preston nevertheless accepts him as his son.
- A very large rebellion occurs on the colony world Far Isle, with the UNSC unable to control it. A Code: Bandersnatch is thus declared, nuclear weapons being used to put down the rebellion.
- The Covenant stumbles upon Doisac, the Jiralhanae homeworld. The Jiralhanae were just beginning to recover after warring themselves back into a pre-industrial state, and were quickly forced into submission by the Covenant's superior forces, making them the final species absorbed into the alliance.
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