Defence of Comellius

The Defence of Comellius was an Imperial defensive campaign carried out by the Dominators Space Marine Chapter to defend the Imperial forge world of Comellius from the predations of invading Chaos forces comprised of both the Iron Warriors Traitor Legion and their Dark Mechanicus allies.

Background
In the early centuries of M38, the forge world Comellius fell under attack by an invading force comprised of both the Iron Warriors and Dark Mechanicus. In defense of the forge world came the Dominators and Marines Exemplar. The Dominators and Marines Exemplar easily overpowered the Iron Warriors with their numbers and repelled the invaders