2535

2535 was a turning point in the Human-Covenant War. With the destruction of Jericho VII, most major Outer Colonies had been destroyed. In order to protect Earth and the remaining colonies, the Cole Protocol was established by military order. Human ships must, when forced to withdraw, not move on to a colony-bound vector, even if that means jumping without proper navigational calculations. If blind jumps are not possible, the ship's commanding officer must order a self-destruction sequence if capture is imminent. In addition, it is also imperative that the shipboard AI construct's data core not fall into Covenant hands; thus, part of this protocol involves either the removal or destruction of the ship's AI in extreme situations. Additionally, no captured Covenant ships or technology may be brought back to a human planet without being checked extensively for surveillance devices.


 * Janissary James is born around this time.
 * Lieutenant Jacob Keyes visits Chi Rho.
 * Thel 'Vadamee is elected Kaidon of the state of Vadam.
 * Battle of Charybdis IX - Charybdis IX is glassed.
 * Battle of the Rubble
 * Battle of Metisette
 * At some point during the year, the Fleet of Particular Justice is formed following a restructuring of the Covenant Navy.
 * The MJOLNIR Powered Assault Armor/AA variant is introduced. The helmet is eventually adopted by the UNSC Army's airborne units.

9th

 * The Battle of Jericho VII begins.

12th

 * Battle of Jericho VII ends.
 * Jericho VII is glassed by the Covenant. John-117 and the other SPARTANs escape aboard the.