Operation: PALE SHADOW

Operation: PALE SHADOW was a UNSC operation carried out on the human colony of Eirene in 2535. During the Covenant's assault on the colony, Kelly-087 triggered a reactor breach that led to a 50 megaton blast at a Covenant forward operating base. The destruction of the base allowed the city of New Kona to temporarily survive the battle.

Despite the success of Operation: PALE SHADOW, Eirene would later be glassed by the Covenant.

List of appearances

 * Halo 5: Guardians
 * Limited Edition dossiers