Armageddon Sector

The Armageddon Sector is the Segmentum Solar administrative cube above the Armageddon Sub-sector, Voss, Golgotha, Justicar, Paleoth, and Desedna — the paperwork around the hive world that has become Imperial shorthand for grinding land war.

Angron's First War, Ghazghkull's Waaaghs, and the Season of Blood all spill beyond one system. This row is the sector box, not a second Armageddon planet page.

The Armageddon Sector still matters because Terra cannot write off a hive cluster this close. Unofficial notes keep the Segmentum Solar parent; Armageddon stays a grandchild via armageddon-system.