Changes

Atoma Prime and the Moebian Domain would side with loyalists during the [[Horus Heresy]]. In the aftermath, an interim government would be set up on Crucis. The Moebian naval battlefleet would also be moved to Crucis during this period. Atoma Prime needed time to recover from events during the Horus Heresy in order to reach full production capabilities once again. In [[M32]], the Moebian battlefleet and administrative authority would be passed back to Atoma Prime from Crucis without incident.{{Fn|2}}

The Fringe Wars would steadily rise in intensity after [[M31]] with the Darktide making significant advances towards the centre of the Moebian Domain. The Imperium would respond by sending an unspecified force to aid the in the defence of the Moebian Domain. Many Imperial worlds would fall during this time of strife.{{Fn|2}}