While each world of Ultramar enjoys the protection of the Ultramarines Chapter, the Ultramar Auxilia functions as the first line of defence against any invaders. The Ultramar Auxilia is trained with extreme discipline and dedication,[1a] reaching to standards expected from Space Marines, as such they are considered much more competent than the average PDF.[1b] While Ultramar is exempt of the normal tithes of manpower expected of the worlds in the Imperium, the Ultramar Auxilia maintain many regiments ready for deployment to locations outside of Ultramar.[2a] Indeed, several of these regiments have fought against the enemies of the Imperium alongside the Ultramarines.[2b]
- Battle of Calth/Shadow Crusade
- War of the Beast
- Battle for Macragge
- Battle of Sotha
- Invasion of Ultramar
- Ultramar Campaign
- Plague Wars
- Mericus Giraldus - Sergeant.
- Tullius Varens - Sergeant, the Prandium 30th Ultramar Auxiliary Regiment.
- Bolus- the Prandium 30th Ultramar Auxiliary Regiment.
- Garstand - 455th Calth Regiment.
- 1: The Chapter's Due (Novel)
- 2: Codex: Ultramarines (2nd Edition)
- 3: Warhammer 40,000: Escalation, pg. 7