Rising from Below

The event known as the Rising from Below was an Imperial xenocidal campaign carried out by the Invictors of Mars Space Marine Chapter against an undying legion of Necrons.

History
After bringing another world to compliance a sudden crack could be heard from below. Soon Necrons would pour from the ground aiming their gauss weapons taking down marines left right and center, The Captains would valiantly charge into their midst just to be impaled by constructs, soon the chapters divisions would dwindle to five and without any survival chance in sight would continue to fight. Until the several guardsmen groups came to aid the chapter. By the end of the fight the chapter remained with two divisions. Having to wait to rebuild they would lay dormant until they would reach full-strength.