- The Insurrection of Mamore takes place on Mamore, resulting in the insurrectionist forces being put down by the Spartan-III Alpha Company.
- The Battle of New Constantinople is fought in either 2536 or 2537.
- The Battle of Leonis Minoris ends in a pyrrhic UNSC victory as two of the Leonis Minoris colonies are glassed and a third saved.
- Heavy conflict takes place in the Bonanza Asteroid Belt, distinguishing the SPARTAN-III Alpha Company.
- Operation: PROMETHEUS. Most of SPARTAN-III Alpha Company destroys a Covenant shipyard on asteroid K7-49, but all 300 of the participating Spartans are killed in the process.
- Beta Company of the Spartan-III's is authorized.
- ↑ 1.0 1.1 1.2 Halo: Ghosts of Onyx, page 81
- ↑ Halo: Evolutions - Essential Tales of the Halo Universe - The Impossible Life and the Possible Death of Preston J. Cole, page 470
- ↑ Halo: Ghosts of Onyx, pages 83-86
- ↑ Halo: Ghosts of Onyx, page 88
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