The Avellar Guard transitioned to the Raven Alliance’s military after the Outworlds Alliance and Clan Snow Raven officially merged in 3083.

For ceremonial duty the upper right quarter of the regiment machines are white and the remaining three quarters are deep orange. The deep orange cuts across the white quarter as horizontal stripes.
-canonized by Beldin and papachicken, 3/2/24

Other references:
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