Nethamus - Geography: The world of Nethamus possessed several areas of ultimate strategic import for any force seeking to maintain or seize control over the planet during the Plague Wars. These included:Convoy Druseus - The largest convoy of factory-crawlers upon Nethamus is codenamed Druseus, in honour of an ancient Imperial Saint of plentiful harvests. This vast gathering of crawlers, silo-trucks and civilian vehicles is heavily guarded, and was on the move constantly once Chaos forces first made planetfall upon Nethamus. Through the sacrifice of millions of Imperial lives, the food reserves and plants stored within Druseus' immense factory-crawlers remain unspoiled, and Imperial transports circled like vultures above the convoy, making regular combat drops to secure great hauls of priceless grain. The extensive procession had to halt for fuel periodically, and it was then that the exhausted Imperial tank crews and mechanised infantry were forced to turn and face the pursuing foe, fending off the enemy's assaults until the factory-crawlers were ready to restart the convoy once more.The Neck - When Mortarion's armies first landed upon Nethamus and began their war of despoilment by unleashing virulent plagues, the Imperium responded with typical bluntness. Vast swathes of the planet's crop oceans were incinerated with Magmatic Bombs. Imperial forces hoped to burn out the toxic gifts of the Nurgle worshippers before they contaminated the entire planet's critical food supply. The fires raging across the southern continent have long since burned out, leaving nothing but a single enormous desert of blackened earth. Several Imperial armoured regiments defended the far north of this great spoil, where the land mass narrowed into a series of ash-choked valleys, the gateway to the remaining crop oceans of the crucial northern continent. They held at bay a large Chaos army of Daemon Engines and armour, which threatened to break through the Imperial lines and encircle the remaining mobile factory-crawler convoys that were already harried by Traitor tank formations pouring out from the polar tundra.Ruins of Khorsis - Once a prosperous agricultural planetary capital, the city of Khorsis fell in the first few solar weeks of the war on Nethamus. It was soon little more than a smoking ruin, claimed by the putrid hand of Nurgle. Death Guard Traitor Marines and their allies took the shattered metropolis for their base of operations, and their slaves and cultist allies have erected vast statues and shrines honouring the Lord of Decay. Bubbling plague pits and corpse-trees now line the once bustling avenues of Khorsis, and more and more Chaos forces pour into the city with every passing day. Horrific slime-dripping daemons gurgle and chortle as they hunt those few unfortunate citizens who were unable to escape the Chaos onslaught and hide within the ruins. The Imperium, however, is not willing to cede the city without a fight. Its armies were deployed to assault the Chaos stronghold, tying up reinforcements and buying precious time for the factory-crawler convoys in the north. The enormous livestock slaughteriums and devastated labour-habs of the ruined city echoed with the ceaseless thunder of artillery shells and high-explosive rounds as battle tanks clashed, while amidst the burned-out buildings, Imperial infantry fought the Warp-spawned monstrosities and Traitor regiments.