Boros Prime

Boros Prime is the principal world of the Boros Gate, the Dark Creed battlefield where Word Bearers under Ekodas and Marduk hit White Consuls, Guard, Grey Knights, and Necrons at once. This pin sits in the Boros System in Segmentum Obscurus.

The Nexus Arrangement jammed the Warp until Marduk spent it. Titus Valens died keeping Gaius Aquilius alive. Kor Phaeron's Brotherhood tried a purge inside the Host and failed. Imperial victory still read like a funeral: three Astartes left standing on a Gate world that had been the whole point.

Boros Prime still matters as the named Gate meat-grinder of Dark Creed. Unofficial summaries keep the boros-system parent and refuse to merge this row with Tanakreg, Sicarus, or Cadia.