Onassis Campaign
From Warhammer 40k - Lexicanum
The Onassis Campaign was an offensive launched by the Imperium during the Great Crusade and it was spearheaded by the Imperial Fists Legion. When the Campaign ended dozens of star systems had been brought under the Imperium's control.[1]
See also
Sources
- 1: Codex: Space Marines (8th Edition), pg. 38 — A Glorious History