Battle of Ascension Valley
On the ninth day of the fighting in the Western Plains, Lord Militant Cybon received the message that Boruna Hive had been conquered by Imperial troops. Stimulated by this novelty and armed by troops of the 4th wave, he directed his armoured platoon to the estuary of the Luminar and managed to close ranks with the mechanised formations of the Magister Qull in Ascension Valley, that he had been combating since the beginning of the operation.
A monumental fight started, the biggest one of the entire battle. Intermittently, Cybon got aid from the Titan Legions of the Adeptus Mechanicus and therefore was able to storm the highlands of the valley after sixteen hours of continuous fighting. Afterwards he was able to declare the Western Continent as pacified.