See the lengths at with Arcadian Leontus, Lord Commander of the Segmentum Solar will go to in order to defeat the vicious Orks in this great novel from Black Library.

A saviour pod screams a flaming path through the skies of Fortuna Minor, almost lost amidst the debris that rains down over the arid plains below. The Imperial fleet in orbit is in full retreat, their deployment undone by orkish cunning. Those lucky enough to make planetfall find the world a false sanctuary - one overrun by Speed Waaagh!s, its population enslaved to build weaponised effigies of the orks' foul gods. For the Imperial forces, every hour will be a hopeless fight for survival. But the man in the saviour pod is Arcadian Leontus - Lord Commander of the Segmentum Solar, peerless tactician and mastermind of countless victories. Even stripped of his armies, Leontus has no intention to merely survive this war. He intends to win it.