Donatos Primus - Notable Locations: Adamant Citadels - The Adamant Citadels are a series of heavy fortifications erected by the Adeptus Mechanicus to protect their interests on Donatos Primus. The Citadels vary both in size and in aspect. The mightiest of them, Ironpeak -- which forms part of the defences of the Valle Electrum -- is located within Donatos' highest mountain. All Adamant Citadels carry an impressive arsenal of void-capable weaponry, including missile silos or towering Macrocannons, but their design also allows them to fire those immensely powerful weapons and ground targets. This was a requirement of the Mechanicus, for the Adamant Citadels' primary goal is to occupy the terrain and prevent riots or rebellions from spreading to other manufacturing sites that could imperil the planet's industrial output.Angellum Stellar (spaceport) - The Angellum Stellar spaceport is only one of several installations of this type on Donatos Primus, but this particular spaceport derives its strategic importance from its proximity to the Valle Electrum. It was at Angellum Stellar that the Traitor Archduke Tan Wyvorn would have his House's secret weapon, a relic Acastus Knight Porphyrion, delivered to him. Pentakhost Peninsula - Located to the south of Continent Primus, the Pentakhost Penisula is a promontory formed by a great gulf of the Raekesh Ocean. Less heavily urbanised than the northern Industrialia, the Pentakhost Peninsula was selected by Imperial forces as their principal landing zone during the Donatos War for two principal reasons. First, its distinctive bottleneck link to the mainland meant that the Peninsula could be easily defended. The Knight Houses of Adrastapol had even employed some of their Drop Keeps along its narrow northern tip as a fortification line whilst landing their troops. Second, as an industrial grade seaside-terminal with good connections to Donatos' road network, the Pentakhost Peninsula possessed the necessary infrastructure to handle the expeditionary force's logistic needs.Square of Martyrs - The Square of Martyrs is a great ceremonial plaza at the heart of the Valle Electrum which, before the Donatos Uprsing, was bordered by towering statues of Imperial Saints and heroes, all of which were subsequently destroyed by the insurgents. During its occupation by the rebel forces, it was on the Square of Martyrs that the Dark Apostle Varakh'Lorr preached to the "liberated" masses of Donatos' workers. During the Donatos War, the plaza became a battlefield where the Imperial Knights of High King Danial Tan Draconis defeated their Renegade brethren. Both Viscount Tan Chimaeros and Archduke Tan Wyvorn were slain in the Square of Martyrs.Valle Electrum - The Valle Electrum was one of two principal sites tasked with supplying Donatos Primus' Adamant Citadels with energy. With its twin, the Peninsulum Manufactorii, destroyed early in the war, the Valle Electrum became the keystone to the Adamant Citadels and thus to Donatos Primus itself. Though its detractors often reduced its importance to that of a glorified Plasma Generator, the Valle Electrum was much more. It was Donatos' most heavily defended and secure location. Not unlike the Imperial Palace on distant Terra, the Valle Electrum was a fortified mountain range, a world within a world, fully self-sufficient and heavily defended. To the north, the mightiest of the Adamant Citadels, Ironpeak, watched over the heartland of the Valle Electrum. All traffic that wished to reach it had to first pass through one of the three mountain passes -- the Pass Primus, the Maw Omnissan and the Nortus Maximal. Each pass was well-defended by bunkers, fortifications and pill-boxes. The hab-towers themselves were double-reinforced and were armed with automated Icarus Autocannon air-defence batteries. Once inside the Valle Electrum proper, sprawling forges and manufactoria covered the ground leading to the Square of Martyrs which separated the towering buildings of Generatorium One and Two. It was there that the heaviest fighting of the Donatos War occurred. With Danial Tan Draconis' victory over the Heretics and Renegades, the Valle Electrum was destroyed by the Imperial Navy's orbital bombardment.