The Angels of Defiance is a Loyalist Space Marine Chapter comprised entirely of Primaris Space Marines created from the lineage of the mysterious Dark Angels and raised during the Ultima Founding of ca. 999.M41.
The Primarch's legendary tenacity and his Legion's ability to bear great suffering to achieve victory is reborn with the new Primaris Chapter called the Angels of Defiance.
Founded in the darkest hour of the Imperium, they have become a beacon of hope beneath the pall of despair, earning many commendations during the Indomitus Crusade.
Most of the Unforgiven Chapters follow the Dark Angels' pattern of organisation, making the Angels of Defiance partially Codex Astartes-compliant.
This includes having formations similar to the elite Deathwing and the Ravenwing, although they are not named as such. While having performed admirably, none have garnered the recognition of their Dark Angels' counterparts.
The black squad specialty symbol -- battleline, close support, fire support or Veteran -- is indicated on the right shoulder pauldron whilst the Chapter iconography is painted on the left shoulder guard.
Squad designation is indicated by a black Low Gothic numeral stenciled on the centre of the squad specialty symbol.
Company number is designated on the right knee guard, utilising the same unique heraldry as that of their parent Chapter.
Veteran Angels of Defiance and members of the Inner Circle are commonly found wearing forest green hooded cloaks and tabards; this symbolises their shame over what the Fallen Angels had done near the end of the Great Crusade.
The Angels of Defiance's Chapter badge is a stylised bone key, pointing upwards, and centred upon a field of black.
- Codex Adeptus Astartes - Dark Angels (8th Edition), pg. 19