Invasion of Shade's Retribution

The Invasion of Shade's Retribution was a major galactic event during the Judgement Era, which is widely considered the catalyst for the resurrection of the Covenant and the Second Covenant War - ironically largely due to the UNSC's involvement, a point which became a source of tension between the Sangheili and the UNSC for some time, and a large public approval loss for the Spartans.

Remarks
"How did it go so wrong? We suceeded, yet in doing so we only created a much greater foe than we could imagine at that time."

- Jerome-092