Ultramarines - Time of Ending and Era Indomitus, M41-M42: Note: All dates from this point forward are provisional due to errors in the Imperial Calendar, meaning these events could actually have occurred at any time from the early 41st Millennium to the early 42nd Millennium.Jorun Retaliation (143.M41) - En route to service in the Gothic War, an Astra Militarum battle group, the 15th Heraklion Ironclads, turned on their Commissariat detachment and went Renegade, becoming Traitoris Militarum. Investigations into this turn of events uncovered the foul xenos taint of the Drukhari, who had managed to ensnare and corrupt General Jorun and his command structure. The Traitor Jorun and his attached former Navis Imperialis battlefleet raided planet after planet, enslaving whole populations for their foul xenos masters. The full Howling Griffons Chapter was given command of a strike force to deal with the Traitors, with support from the Ultramarines and Sons of Orar Chapters of the Adeptus Astartes for a campaign that became known as the Jorun Retaliation. The Traitoris Militarum force was intercepted as they made planetfall on the Feral World of Asturia. Caught unprepared for such a fierce counter-assault, over 5,000 Traitoris Militarum died in the first solar hour of the ferocious Space Marine attack, torn apart on their landing zones with much of their heavy armour yet to be unlimbered. General Jorun eventually met the Emperor's judgement at the hands of the Howling Griffons Chaplain Armand Titus. The Traitors' morale collapsed with the death of their leader and the swift desertion of their foul xenos allies. The disordered and panicked Heraklons were ruthlessly hunted down and slain in the aftermath; the Renegade forces were completely wiped out within only six solar hours of the battle's opening salvos.Space Station Ghould (565.M41) - The Ultramarines loosed their Siegebreaker Cohort upon the pirate-infested Space Station Ghould. Determined to keep the element of surprise, the Centurions boosted out from the airlocks of the Guilliman's Oath to carve their way through the void station's dense plasteel hull. The resultant decompression killed nine-tenths of the pirate base's inhabitants, and the Centurion warsuits eradicated the rest with pitiless efficiency.Charadon Campaign (698.M41) - In 698.M41 the Ultramarines took part in a combined Space Marine force led by their Chapter Master Marneus Calgar, which consisted of elements of the Angels of Absolution, the Lamenters, the Marines Errant, and the Silver Skulls. During a seven-standard-year-long Imperial Crusade the force inflicted a series of major defeats on the Ork empire of Charadon which delayed the invasion of Imperial space by the WAAAGH! Argluk for thirty standard years.Battle of Macragge (745.M41) - The Tyranids' main force enters the galaxy and the Tyrannic Wars begin. Hive Fleet Behemoth was spearheading a large Tyranids invasion force into Imperial space and were making unprecedented progress towards the Realm of Ultramar. Upon learning of the threat posed to Ultramar by the vicious Tyranids from Ordo Xenos Inquisitor Fidus Kryptman, Chapter Master Marneus Calgar at once drew up his plans. Calgar declared that the hive fleet would be halted at Macragge before it consumed more of Ultramar or drove deeper into the heart of the Imperium. Deeming Macragge to be the star system most immediately threatened, Calgar ordered its formidable defences to be further improved. Scant solar weeks later, the outrider vessels of the Tyranid fleet attacked Macragge. With the hive fleet destroyed after the sacrifice of an Imperial battleship which created a Warp vortex that destroyed the majority of the hive fleet, Calgar's surviving starships came about and roared back to Macragge to try to save the beleaguered polar garrisons. Calgar, feeling that the situation was becoming critical, sent the 3rd and 7th Ultramarines Companies ahead in their fast strike cruisers while his remaining damaged warships limped back to Macragge. Despite horrendous losses inflicted upon the Tyranid fleet from the orbital and polar defence grids of Macragge, many Tyranid organisms were able to reach the surface of the planet. The Tyranid swarm swept across the world with the most intense fighting in the region of the northern polar defence installations. Despite the Ultramarines fleet's ability to destroy the Tyranid bio-ships, horrific casualties were suffered by the planet's population as well as the Chapter. Calgar went down to the planet's surface, leading the 3rd Company against the ravenous hordes of the Great Devourer. The entirety of the elite 1st Company was wiped out to a man whilst defending the northern pole's defence grid. The Ultramarines 1st Company was gone and the 3rd and 7th sorely diminished. It would be many long Terran years before the Chapter could properly replace its losses from the Battle of Macragge, but replace them it would.Strife in the Darkness (746.M41) - The underground tunnels of Calth are infested with Tyranid burrower-organisms after the attack of Hive Fleet Behemoth. The Ultramarines, fearing that the snake-bodied terrors could remain a blight for solar decades to come, mobilise several Siegebreaker Cohorts and send them to war deep underground. Using omniscopes to detect the vibrations made by the Tyranid burrow-beasts, the Centurion sergeants and their warriors use siege drills to carve their way into the Tyranid tunnels just as the burrowing creatures pass by. A series of ugly and claustrophobic battles erupt under the planet's crust, as often fought in total darkness as in the wan light of the Centurion sergeants' omniscope arrays. Though it takes the best part of two standard years before the Centurions are returned to normal service, the burrower-beasts are believed to be eradicated.Purge of Thrax (762.M41) - Chapter Master Marneus Calgar led the remnants of his Chapter against the Daemon-corrupted Adeptus Mechanicus Forge World of Thrax in 762.M41. Under the leadership of their Chapter Master, the Ultramarines banish countless thousands of Daemons and recover crucial Imperial data-records from the twisted manufactoria complexes. With the mission complete, Calgar issues the order for Exterminatus of the corrupted world.Siege of Zalathras (797.M41) - Marneus Calgar, Chapter Master of the Ultramarines, holds the gate alone against an Ork horde for a solar night and a day.A New Power Rises (799.M41) - The Ultramarines begin to fortify the eastern bounds of their realm of Ultramar against the emergent forces of the upstart T'au Empire.Forgoil Campaign (805.M41) - WAAAGH! Gutshredda rampages through the Forgoil System. Marneus Calgar leads 3 companies of the Ultramarines to the assistance of the Forgoil Planetary Defence Forces. In a little more than three solar weeks, the Ultramarines destroy the tellyporta ships and Stompa factories that provided WAAAGH! Gutshredda with much of its momentum. In the final battle of the war, Calgar and his Terminator-armoured retinue board and destroy Gutshredda's flagship, Da Supadestructa.Luxor Uprising (812.M41) - An Alpha Legion-inspired and supported uprising amongst the indentured workers of the world of Luxor threatens the supply of war materiel across the entire northern Ultima Segmentum. With time of the essence, the Ultramarines launch a daring counter-invasion and, having decimated the untested rebels, finally corner the Chaos Space Marines at the planetary capital's starport. The Traitors are slain and the few surviving loyal workers rallied. The Space Marines and mortal Loyalists then join forces to hunt down and destroy the last vestiges of the rebellion over the coming solar months.Ironblood Campaign (822.M41) - Warpsmith Grathax descends upon the world of Ironblood with an army of Daemon Engines laying waste to everything in their path. They are soon met in open battle by several Astra Militarum tank regiments and over a hundred Ultramarine main battle tanks under the command of Brother-Sergeant Antaro Chronus. The ensuing battle lasts for three solar days, and enough ordnance is expended to flatten several cities, before the last Warp-forged machine is finally destroyed. Over a thousand smoking wrecks litter the scarred landscape, creating a tank-graveyard so vast that it is visible from orbit.The Chapter Endures (841.M41) - The Ultramarines' Veteran 1st Company's operational strength exceeds fifty percent for the first time since the Battle of Macragge.Hallowed Stars' Scouring (848.M41) - Chief Librarian Tigurius' mysterious insights lead to the Hallowed Stars' Scouring.A Hero Honoured (849.M41) - Captain Cato Sicarius is appointed as High Suzerain of Ultramar.Battle for Black Reach (855.M41) - WAAAGH! Zanzag invaded the Hive World of Black Reach. By the time Captain Cato Sicarius and the 2nd Company of the Ultramarines arrived in orbit, the Orks, using devastating new weapons, had already overrun much of the planet. Sicarius and his battle-brothers immediately deployed to reinforce Ghospara, the besieged capital hive city of Black Reach. The Ultramarines' Drop Pods landed hard on the heels of an orbital bombardment and in a brief but bloody battle, cast the Orks from Ghospora's walls before setting off in search of Zanzag himself. Captain Sicarius prosecuted a deadly search-and-destroy mission, razing several Ork forts along the Blackwallow River, but Zanzag continued to evade him. When Sulphora Hive came under attack from a massive Ork horde, Sicarius handed the hunt over to Veteran Sergeant Toria Telion and his Scout Marines. Telion soon discovered that the Orks were transporting warriors and weapons across the Blackwallow River by means of crude submersibles and tracked them to a vast natural cave -- Zanzag's base of operations. Sicarius immediately gathered what forces could be spared and boarded a Thunderhawk gunship to assault Zanzag's lair. The Orks were taken completely by surprise by the speed and ferocity of the attack; Heavy Bolter shells and Hellstrike Missiles tore into their formation before they even realised they were under attack. Within moments, the Thunderhawk's front ramp slammed open and Captain Sicarius led his Space Marines into the heart of battle, striding forwards with bolters blazing. Scores of Orks fell, their bodies heaped around the shattered stalagmites of the cavern floor, before they could mount a counter-attack. Zanzag directed the firepower of his Boyz' supa-weapons, but their shots proved nearly worthless against the inviolable armour of the Terminators marching at the fore of the Ultramarines' assault. It took a solar hour of bloody fighting to secure the cavern, but the Orks were finally defeated when Sicarius cut their warlord's head from his shoulders and ended the threat of WAAAGH! Zanzag with a strike from his Power Sword.Assault of M'kar (878.M41) - Chaos pirates, led by the Daemon Prince M'kar the Reborn, claimed several uninhabited worlds on the borders of Ultramar. In a decisive battle in the Halamar Rift, Captain Cato Sicarius destroyed much of the pirate fleet, but M'kar the Reborn escaped into the Warp.Battle of Orar's Sepulchre (888.M41) - An Asuryani emissary from the Biel-Tan craftworld was sent to the Imperial world of Commrath to enter negotiations with its planetary governor for the return of an ancient eldritch artefact from the tomb of one of the Ultramarines' most-lauded heroes, Captain Orar, known as the Sceptre of Galaxian. When the Imperial noble refused his request, the Asuryani emissary grew angry and soon his pleas turned to threats of violence. The planetary governor refused to be cowed by the arrogant xenos and had the Asuryani executed on the spot. However, the governor had the foresight to heed the Asuryani's threats and requested aid from the Ultramarines. Asuryani from the Alaitoc and Iyanden craftworlds then proceeded to assault Commrath to recover the Aeldari artefact within Orar's Sepulchre. Orar was a great Ultramarines hero in the aftermath of the Horus Heresy, and Chapter Master Marneus Calgar vowed not a single alien would breach the sanctity of his tomb. For the first time since the Battle of Macragge, Calgar led his entire Chapter to war. The Asuryani descended upon Orar's Sepulchre to find it held against them by the Ultramarines. Asuryani Aspect Warriors and Guardians darted towards the main gates of the great edifice that was Orar's tomb as grav-tanks and artillery engines battered the Imperial defenders. On Calgar's command, the Ultramarines emerged from cover and scoured the invaders from the Sepulchre's steps with disciplined bolter volleys. The Asuryani fell back, only to find their lines of retreat cut off by Assault Marines and Land Speeders. Asuryani leaders emerged from cover and rallied the trapped first wave, only to fall to sniper fire as the Ultramarines' Scout Marines made their presence known. The initial Asuryani assault faltered but, for an entire solar day and night, they continued to attack. Though they mustered every arcane science at their command, they could not overcome the tactical brilliance of Marneus Calgar and his Ultramarines. The following day, a fresh assault swept onto the great stairs of the sepulchre, led by a colossal figure wreathed in flame -- an Avatar of Khaela Mensha Khaine, the Aeldari god of war. Heavy weapons fire seemed only to anger the creature, and the Ultramarines' battle line buckled beneath its onslaught, so Calgar issued a challenge himself. The fiery god bellowed with fury, its first blow missing the Ultramarines' Chapter Master by a hair's breadth. The second tore plates from Calgar's armour. A third bit deep into his shoulder, driving the Chapter Master to one knee. But the fourth slammed into the armoured palm of Calgar's left hand. Rising up, Calgar struck with all his strength, bringing his other gauntlet around in a mighty arc that punched clean through the molten ichor of the Avatar's torso. With the fall of their war god, the Asuryani lost all heart and retreated. Some fled without heed while others fell back in good order, but all of the xenos retreated into the darkness. Despite overwhelming odds, once again the Ultramarines had emerged victorious, but in his wisdom Calgar knew that the Asuryani would return for the Sceptre of Galaxian. So it was that Calgar informed Commrath's governor that the Galaxian Sceptre would be removed from Orar's Sepulchre to Macragge, where it could be properly defended.Liberation of Graia (Unknown Date.M41) - The Forge World of Graia in the Segmentum Tempestus, home to the Titan Legion known as the Legio Astraman ("The Morning Stars"), was assaulted by the Ork WAAAGH! Grimskull, over a million Greenskins strong. The Astra Militarum's 203rd Cadian Regiment was diverted to Graia and made a combat drop, but was unable to stem the green tide and the Adeptus Mechanicus feared that the world and its extremely valuable Battle Titan-manufacturing facilities would fall into the Orks' hands, representing a major threat to the Imperium. To deal with this threat, the Ultramarines despatched the 2nd Company, at this time under the command of Captain Demetrian Titus, to assist the guardsmen. After launching an assault on the Ork flagship in orbit of the world in the hope of slaying the Ork Warboss Grimskull outright, Titus and two members of his company's Command Squad were forced to land on the planet itself. They proceeded to engage the Ork forces and ultimately to unmask a plot of the Chaos Sorcerer Nemeroth and his warband of Chaos Space Marines, the Chosen of Nemeroth, to seize experimental technology on Graia that would allow Nemeroth to ascend to become a Daemon Prince with Graia as his Daemon World. In the course of the Graian campaign, Titus successfully slew Grimskull in single combat, thus ending the Ork threat as the Greenskins withdrew from the world as their various tribes began fighting for control of the WAAAGH! Titus also faced Nemeroth as he began his ascension to Daemonhood and slew the foul sorcerer, banishing his soul to the Warp and ending his plans for Graia. Detachments of the Blood Ravens and Black Templars Chapters then arrived to aid the Ultramarines and the remnants of the Astra Militarum in securing the Forge World. However, during the crisis on Graia, Titus had displayed both a disregard for the strictures of the Codex Astartes and had been curiously unaffected by Nemeroth's Chaos sorcery. Fearful that his commander had become tainted by Chaos, his subordinate Leandros made his concerns known to the Inquisition. Inquisitor Thrax, who had arrived on Graia with the Black Templars, took Captain Titus into custody for interrogation and the determination of his purity. The Liberation of Graia took place at a time when Demetrian Titus was the captain of the 2nd Company, solar decades before Cato Sicarius took up the role.Morix Assault (900.M41) - The heavily-defended T'au outpost on Morix Prime is eliminated in a rapid strike by the Ultramarines 4th Company.Six Hour War (913.M41) - Captain Severus Agemman demonstrated why he was captain of the Ultramarines Veteran 1st Company when he led a Strike Force Ultra in the destruction of a substantial T'au garrison in just six solar hours. In a sublime execution of the teachings within the Codex Astartes, Agemman invaded the sun-scorched Desert World of K'ail close to the edge of the Damocles Gulf, where the disputed territories of the Imperium and T'au Empire collide. Though the garrison was well-equipped with Battlesuit and armour support, Agemman's twenty Veterans performed a coordinated strike that crippled the T'au's central defence network. Whilst Stormraven-borne battle-brothers made a series of diversionary attacks on munitions caches around the garrison's perimeter, Agemman personally led a teleport assault directly on the T'au command node previously identified by elements of the 10th Company. Thinking they faced a much larger force, the surviving T'au retreated into the void rather than be destroyed.Darkhold Ambush (921.M41) - Marneus Calgar was ambushed by the Night Lords whilst en route to the Darkhold war zone. The Chapter Master's crippled vessel made planetfall on the sparsely-settled Imperial Feudal World of Barathred. Several hundred Night Lord Chaos Space Marines made landing shortly thereafter, but Calgar rallied the planet's feudal population to defeat them.Great Bastion of Andraxas (922.M41) - Chief Librarian Tigurius led an Ultramarines strike force to rescue a delegation of Tech-priests from the Ork invasion of the world of Andraxas. Within the towering mega-fortress known as the Great Bastion, the Adeptus Mechanicus Tech-priests had unearthed a Force Staff that bore the electoo recognition codes of none other than Malcador the Sigillite. The Ultramarines struck with pinpoint accuracy and great fury, only to find that the Ork forces upon Andraxas had such a high degree of aerial supremacy that they could scramble a dizzying amount of reinforcements to the Great Bastion. Given that the Bastion was the only part of the planet that had not already been subjugated by the Greenskins, the Orks flocked to the fight in impossible numbers. Tigurius and his men were outnumbered fifty-to-one, and were about to commend their souls to the Emperor when the air shimmered and the Legion of the Damned burst into realspace. The slaughter that followed is nothing short of inspirational. Flaming volleys of bolter shells blasted Orks to bloody scraps on every wall and gulley. Tigurius renewed his attack, only to find the morale of the xenos invaders has been devastated by the sudden and inexplicable strike. The Great Bastion was secured and used as a base for the subsequent evacuation of the world's surviving Imperials. The Force Staff of Malcador the Sigillite was recovered and examined by the Mechanicus and then by Tigurius himself, yielding secrets about the Golden Throne's construction and a greater understanding of the sacrifice its master made in the name of the Imperium. It is still in the Chief Librarian's hands to this day.Trenor Uprising (929.M41) - Three dozen Ultramarine Scout Marines, under the expert direction of the famed Sergeant Telion, put down a rebellion against the Imperium on Trenor in less than a solar day.M'kar's Revenge (935.M41) - A Daemonic horde under the direction of the Word Bearers Daemon Prince M'kar the Reborn seized control of the star fort Indomitable in Calth's outer orbit. Under the command of Marneus Calgar, Terminators from the Ultramarines' Veteran 1st Company boarded the star fort. M'kar was slain by the hand of the Lord Macragge, who tore the upstart Daemon Prince limb from limb.Second War for Armageddon (941.M41) - WAAAGH! Ghazghkull descended upon the Imperial Hive World of Armageddon in the Segmentum Solar, initiating the Second War for Armageddon. The Orks were defeated only by the extreme stubbornness of the defenders and the combined might of the Blood Angels, Ultramarines and Salamanders Chapters. Thought dead by his foes, the wily Ork Warlord Ghazghkull Thraka escaped into space.Cleansing of Malbede (963.M41) - The Ultramarines clashed with a T'au expeditionary fleet for control of the cursed planet of Malbede. When the conflict on the surface awakened the Necrons hidden on Malbede, the Ultramarines and the T'au joined forces to defeat the emerging Necrons. In the wake of the battle, Marneus Calgar initiated an Exterminatus action on Malbede, but allowed the T'au to evacuate before the planet and its undying horrors were destroyed.Dark Rain at Vallenin (967.M41) - Despatched to free the enslaved population of the Agri-world of Vallenin from the Drukhari Kabal of Lethal Guile, the Ultramarines' 3rd Company was sorely pressed by the sadistic xenos' grav-craft, until their Hunters deployed to reap a great tally amongst the swift craft.Damnos Incident (974.M41) - The Ultramarines 2nd Company under the command of Captain Cato Sicarius rescued survivors from the doomed world of Damnos, an Imperial Civilised World and Mining World that was also a Necron Tomb World. The Necrons awakened and launched a massive assault upon all life on the planet's surface, while Damnos' Planetary Defence Force and Astra Militarum regiments proved unable to defeat the hideous cybernetic xenos. The Ultramarines made a defiant stand at the planetary capital city of Kellenport, holding the Necrons back as the evacuation of the planet's Imperial population proceeded during what became known as the Damnos Incident. Chief Librarian Tigurius is found wherever the Ultramarines are hardest pressed, shattering the advancing Necrons with the fury of his mind and summoning psychic telekinetic shields to cheat the machine lifeforms of their prey. The actions of Venerable Dreadnought Agrippan are just as heroic, and for three solar hours he holds Kellenport's western gate alone and unaided, obliterating all who oppose him. By the time Kellenport's defenders are driven back to their last bastion of defence, only forty Space Marines and twenty guardsmen remain planetside. Agrippan is lost in these last few solar minutes, his frame pinned between a dozen streams of Gauss Weapons fire. As Thunderhawks speed Tigurius and the last survivors to safety, Agrippan's fusion reactor explodes, obliterating the spaceport and every Necron within it.Skirmish with Hive Fleet Perseus (976.M41) - Hive Fleet Perseus is detected by the Ultramarines in 976.M41. Spearheading an assault, Chapter Master Marneus Calgar was severely mauled, losing all four limbs as well as large areas of body tissue and his left eye. He underwent extreme augmetic surgery and has had most of his missing body parts replaced with bionics.Liberation of Lagan (989.M41) - The Ultramarines 3rd Company liberates the Lagan System from the T'au Empire.Second Tyrannic War and the Battle of Ichar IV (993.M41) - The Ultramarines quash a rebellion on the Industrial World of Ichar IV, only to find themselves at the forefront of a desperate defence against Hive Fleet Kraken. Accompanied by Chaplain Ortan Cassius and Tyrannic War Veterans from the First Tyrannic War, Calgar launches a daring assault that severs the Tyranids' synapse creature control through the Hive Mind, a battle won in no small part due to the fury with which Cassius leads his brothers into the fray. In a replay of history, Marneus Calgar, having narrowly escaped death at the hands of the Swarmlord during their confrontation on Macragge, faces the genetic reincarnation of the same beast on the blood-soaked fields of Ichar IV. This time, however, Calgar triumphs, slaying the beast with his bare hands. However, the Space Marines' victory comes too late to save the planet itself, for the Tyranids had already reduced it to a smoking charnel house of death and destruction. Perhaps worse for the Imperium, the Hive Mind re-absorbed the Swarmlord's consciousness yet again, and having learned from its defeat, the beast's next reincarnation would prove to be more cunning and dangerous than ever before. Elsewhere, the Asuryani Craftworld Iyanden is ravaged by other tendrils of the Kraken. Two Space Marine Chapters -- the Scythes of the Emperor and the Lamenters -- are all but wiped out and hundreds of Imperial worlds are lost to the Tyranids before the incursion is blunted.Taking of Bridge Two-Four (997.M41) - At the Battle of Bridge Two-Four on the planet Thracia, Sergeant Uriel Ventris succeeds Captain Idaeus as the acting commander of the Ultramarines 4th Company. Idaeus passes on his Power Sword, a symbol of his office, then valiantly sacrifices himself against an overwhelming force of Chaos Space Marines in order to capture a vital objective.Third Tyrannic War and the Defence of Tarsis Ultra (997.M41) - Elements of the Ultramarines and Mortifactors Chapters, led by Chaplain Ortan Cassius, make a stand against one spur of the Tyranids' Hive Fleet Leviathan on the world of Tarsis Ultra. The defenders defeat this tendril of the Leviathan with an engineered anti-Tyranid biological plague, but the remainder of Hive Fleet Leviathan rampages on unabated.Second Battle of Damnos (999.M41) - Despite the Inquisition's efforts to suppress all knowledge of the Necrons' reemergence into the galaxy and the end of their Great Sleep, the Imperium's faith in its military supremacy was shaken by the news that spread across the galaxy after 974.M41 that these xenos had overcome both the Astra Militarum and the Ultramarines at Damnos. Eventually, reports of the loss of Damnos made their way to Terra, where both the fabricator-general of the Adeptus Mechanicus and the High Lords of Terra decreed that the Ultramarines must return to Damnos and eradicate the Necron threat once and for all. Twenty-five standard years after the Damnos Incident, in 999.M41, this Imperial order was brought to Macragge by the experienced Deathwatch strike team led by Squad Lazarius. Chapter Master Marneus Calgar was not pleased with the Imperium's decree, for he knew that his 2nd Company had faced only a fraction of the awakened Necrons on Damnos a quarter of a standard century before. Once they returned to Damnos, the Ultramarines would face the entire strength of a Necron Tomb World and risk the deaths of hundreds of the Chapter's Astartes. Yet, Calgar knew that the High Lords of Terra were right and that the Necrons on Damnos must be defeated if the Imperium was ever to know peace in the face of the growing Necron threat. With the record of the Ultramarines stained by the earlier action on Damnos, it was their duty to banish the ghosts of the past. Upon hearing Calgar's announcement that the Ultramarines' 1st, 2nd, 3rd, 5th, and 6th Companies, accompanied by elements of the 10th, would return to reclaim Damnos for the Emperor, Cato Sicarius smiled for the first time in decades. It is said that during the preparation for the assault, Sicarius trained so hard that he fought with the fury of a man possessed and even slept in the cage-vault. Before the solar month was out, Calgar's armies and fleets had been assembled and over 500 Space Marines stood ready for war. In addition, Sicarius was granted a Vortex Grenade by the Deathwatch Sergeant Davian Imocles, who was rumoured to be an old friend and former squad mate. The journey to Damnos was a perilous one, with Calgar relying on various ruses and distractions to get his warriors safely to the planet's surface. By the time the Necrons had spotted the true location of the Ultramarine warships, the Astartes fleet was in a position to launch their Drop Pods. The first wave consisted of unmanned variants designed to draw the fire of the Gauss Pylons. The second wave, however, represented the true assault, which brought hundreds of Space Marines as well as a number of vengeful Astra Militarum regiments to the heart of the Necrons' subterranean tomb complex. Their objective was to destroy the pyramidal complexes that controlled the Necron power grid and to do it before the Imperial forces were overwhelmed. However, one factor that they did not account for was the physical incarnation of a C'tan Shard held within a Tesseract Vault. It was determined that this vault was the true source of the Necrons' power and must be neutralised if the Imperial forces were to have any hope of victory. Despite the power brought to bear by the Imperial assault on Damnos, Marneus Calgar felt like a duelist being taken apart by a superior foe in the battle-cage. The xenos' battle logic proved impeccable, with its master intelligence anticipating the Ultramarines' every move and neutralising each tactic they employed. Thanks to an energy shield emitting from the vault, every plasma volley and melta blast employed against the Necron Monoliths dissipated harmlessly or detonated prematurely before it could harm the constructs. Since the xenos had managed to analyze the Ultramarines' battle doctrine, Calgar realised he must attempt a completely unexpected stratagem. Assaulting the ranks of the Necron Immortals, the Chapter Master jumped onto the metallic base of a malfunctioning Gauss Pylon and slowly pushed the war engine's crescent back until its viridian beam hit the energy shield of the floating necropolis. With a blinding flash of light, the energy shield protecting the tomb complex collapsed and the Tesseract Vault was broken wide open to reveal the enraged demigod imprisoned within. A giant cruciform of pure light rose above the Necron army, the remnants of the C'tan's energy cage still crackling around it. Roaring in exultation at its newfound freedom, the booming sound threw Ultramarines and Necrons alike to the icy ground and cracked the planet's crust. Its first victim would be the Necron Overlord, the Undying, which the star god crushed with ease by transforming the earth around his metallic form into an oversized fist. The Overlord phased out of reality, seeking to escape back to his subterranean lair. But deep underground, the surviving members of the Deathwatch's Squad Lazarius had reached their own objective. The Undying teleported back to his cabled sarcophagus right in front of the Deathwatch's eyes. Unfortunately for the Necron, the crack team of Astartes had replaced his revivification engines with Melta Bombs and entropic destabilisers and proceeded to blast the Necron Overlord into atoms. Back on the surface, the xenos reeled from the loss of their leader and the artificially intelligent command programs that had governed their warriors' every action. Meanwhile, the unleashed C'tan lashed out in fury at both its Necron enslavers and the Ultramarines as Captain Sicarius duelled a Flayed Ones lord. After ramming his Power Sword into the powerful Flayed One's torso, Sicarius summoned twenty-five standard years of anger and frustration into a final burst of strength. He unclipped the Vortex Grenade that had been given to him earlier by the Deathwatch and activated the weapon before throwing it at the enraged demigod hovering overhead. The grenade detonated and formed a spiralling orb of nothingness as its unstoppable force sucked the C'tan Shard into the Warp before collapsing and winking out of existence. Sicarius felt a great weight lift in that moment, as he realised both he and the Ultramarines had been redeemed for their original failure on Damnos in the sight of the Emperor. Over the next few solar days, the Imperials eliminated the surviving Necrons with grim efficiency. Empty tomb complexes were collapsed or detonated under the guidance of the Deathwatch and the citizens of Damnos whom Sicarius had rescued solar decades before were restored to the world to reclaim it for their own.Zeist Campaign (999.M41) - Captain Cato Sicarius leads an army to halt the T'au's Fourth Sphere Expansion. An Imperial Crusade later known as the Zeist Campaign, drawn from 30 Space Marine Chapters, drives the T'au back from dozens of Imperial worlds, but is recalled before its work can be completed to deal with the much greater threat of Abaddon the Despoiler's 13th Black Crusade.Invasion of Ultramar (854.999.M41) - In the midst of the oncoming 13th Black Crusade, the Realm of Ultramar comes under renewed assault from the forces of Chaos during the campaign that becomes known as the Invasion of Ultramar. The Daemon Prince M'kar the Reborn, clad in mortal flesh once again within the body of a former Ultramarines Dreadnought, leads the onslaught against the world of Talassar. Other Chaos warlords under the control of the Iron Warriors Warsmith Honsou attack Calth, Espandor and Tarentus, while Quintarn is invaded by the armies of the Bloodborn. Marneus Calgar recalls all Ultramarines forces to defend Ultramar, dispatching a reinforced Battle Company to each threatened planet. Calgar himself accompanies the 2nd Company to defend Talassar, determined to slay M'kar a hundred times over if need be. Calgar once more faces M'kar, this time destroying the Daemon forever with the use of a sacred relic of the Ultramarines dating to the Horus Heresy. During this war, many Ultramarines successors send aid to their beleaguered gene-sires, proving that the bonds of honour between Guilliman's gene-sons remain as strong as ever.Eye of Vengeance (870.999.M41) - In an exemplary display of his abilities, Scout Sergeant Telion single-handedly changes the balance of the war on the world of Quintarn.Ultramar Campaign (999.M41) - Strange events, the appearance of the ancient Archmagos Dominus Belisarius Cawl and a cryptic alliance with a mysterious Aeldari kindred known as the Ynnari conspire to awaken the Ultramarines primarch Roboute Guilliman from his millennia-long slumber in a stasis chamber in the Fortress of Hera on Macragge during the Ultramar Campaign of the 13th Black Crusade. The primarch is immediately embroiled in battle as a Chaos assault by the Black Legion as Abaddon attempts to prevent his return. Guilliman and the Ultramarines successfully throw back the Despoiler's forces even as a more insidious assault by the servants of Nurgle begins to infest Ultramar. Determined to return to the Throneworld despite the instability growing in the Warp, Guilliman departs Macragge with a fleet of supporters to make his way to Terra and stand once more before the Emperor's throne.Terran Crusade (999.M41) - Despite multiple attempts by his brother the Daemon Primarch Magnus the Red of the Thousand Sons Traitor Legion to derail his journey, including a detour into the Maelstrom Warp rift and a battle on the surface of Luna, Roboute Guilliman arrives at the Imperial Palace on Terra with a small remnant of the forces who began the crusade with him. After his first meeting with his father in ten standard millennia, Guilliman declares himself the lord commander of the Imperium and Imperial Regent once more and announces the start of the Indomitus Crusade to stabilise the Imperium and defeat the forces gathering to cast Mankind into the darkness.The Great Rift Opens (ca. 999.M41) - The Warp storm-riven galaxy is cracked asunder by the Great Rift. The Noctis Aeterna sweeps over Ultramar. The last message sent from Macragge to each nearby planet commands it to batten down and look to its own defences.Screams of Hadyn III (Unknown Date.M42) - Responding to broken and horrified astropathic signals from several Astra Militarum regiments emanating from a single system, the Ultramarines strike cruiser Circe's Halo finds it uninhabited. The cries fade.Indomitus Crusade (Unknown Date.M42) - Detachments of Ultramarines forces play a major role in the fleets of the Indomitus Crusade throughout its course. An Ultramarines strike force is known to serve with the crusade's Fleet Primus Battle Group Erastus during the Ispolin Sub-sector Offensive.War of Beasts (001.M42-025.M42) - Ultramarines Chapter Master Marneus Calgar is guided to the world of Vigilus by the prophetic powers of Chief Librarian Varro Tigurius. There he forges a new senate to lead the planet's defence against xenos and Chaos attacks, and rallies the Imperial forces in the face of overwhelming foes. The Imperial forces prove successful in repelling a concerted assault by Abaddon the Despoiler and the Black Legion, who seek to claim Vigilus and put an end to its ability to hold open the Nachmund Gauntlet between the Imperium Nihilus and the Imperium Sanctus.Nemendghast Raid (Unknown Date.M42) - During the War of Beasts, Marneus Calgar ordered Captain Sevastus Acheran to take a force of Vanguard Space Marines designated Strike Force Shadowspear to the Industrial World of Nemendghast to investigate the sudden silence of this strategically vital world for Vigilus' defence. They discovered that the world had been claimed by the Black Legion and was being used to produce Daemon Engines and Possessed Chaos Space Marines for Abaddon the Despoiler's coming invasion of Vigilus. Acheran successfully stopped the infernal production at the cost of the lives of most of the Vanguard Marines under his command and managed to warn Calgar of the Chaos assault to come.Third War for Damnos (Unknown Date.M42) - The Third War for Damnos began when an invasion force of the Necron Szarekhan Dynasty descended upon Damnos during the Era Indomitus. The world sent out a plea for aid once more to the Ultramarines, who at that time were engaged in a number of major conflicts of the era, including the Indomitus Crusade, the Plague Wars and the War of Beasts. With most of their strength utilised elsewhere, the Chapter had few Astartes to spare to help the besieged world. Nonetheless, the Chapter had given too much previously in Damnos' defence to abandon it and a small strike force of Ultramarines and several regiments of the Ultramar Auxilia were sent to aid it. The Chapter knew that the forces that had been deployed to Damnos would be insufficient to defeat the Necrons and so requested aid from their allies in different Chapters of the Adeptus Astartes. Their requests were answered and when the Ultramarines arrived at Damnos they were joined by contingents from several Successor Chapters, including the Iron Hounds, Brazen Consuls and Libators. The combined might of these Adeptus Astartes, however, was not enough to defeat the invading Szarekhan Dynasty, whose forces were numberless. This was due to the undying xenos arriving in their thousands by Tomb Ships and through a Dolmen Gate to ensure they reconquered Damnos. When the Mandeville Point for the Damnos System once again flared as it opened to the Warp, the Ultramarines feared that another foe was about to join the conflict, but instead it marked the arrival of reinforcements sent by the Salamanders and White Scars Chapters. They had received the Ultramarines' request for aid and proceeded to join the battle to retake Damnos once more for the Emperor from the Szarekhan Dynasty.Plague Wars Begin (Unknown Date.M42) - To the galactic north of Ultramar, the followers of the Chaos God Nurgle establish dominion in the Scourge Stars. From this hive of corruption, armies of Nurglish Daemons pour forth, accompanied by the traitorous Death Guard Legion along with Renegades and Nurglite Chaos Cultists beyond count. Three loathsome spearheads push into Ultramar, attacking along a hundred fronts during what is known as the "War of Flies" and bringing with them unnatural pestilence. The defenders of Ultramar fight bravely, but lose ground. Ultramarine Primaris Space Marines of the Ultima Founding arrive from Terra to reinforce their brethren, but they can only slow the attackers.Guilliman Returns to Ultramar (ca. 012.M42) - All across Ultramar, the Imperial defenders are depleted in dozens of ground campaigns, while a Plague Fleet systematically destroys the realm's defence fleet and star fortresses. Guilliman returns from the Indomitus Crusade after over a solar decade of campaigning to stabilise the Imperium Sanctus after the opening of the Great Rift, and his deft and defensive manoeuvres buy time to launch the Spear of Espandor counterattack. The combined plague armies are eventually fought to a standstill amongst the ruins of Iax, before the Death Guard Daemon Primarch Mortarion escapes under cover of a Virus Bomb attack.Into the Darkness (Unknown Date.M42) - In a brief respite following the end of the Plague Wars, Guilliman orders the rebuilding and decontamination of the worlds of Ultramar, as well as the establishing of new procedures for creating further Ultramarines of Primaris Marine stock. It is not long before new crusades call the lord commander of the Imperium away from Ultramar and back out into the dark galaxy.The Vengeance Campaigns (Unknown Date.M42) - The Ultramarines led a coalition of their Successor Chapters and Loyalist Knight Houses across neighbouring star systems. While attempting to free seven worlds from Daemonic enslavement, Chapter Master Marneus Calgar simultaneously masterminded a hit-and-run campaign to break a vast Ork force before it could reach the Forge World of Metalica. Using rapid strike attacks, the Space Marines won hundreds of battles, but only managed to slow the rampaging Greenskin hordes as they focused the majority of their efforts on the more dangerous Daemonic legions. Three of the targeted seven planets are saved, but the bulk of the Tartella System remains in the hands of Daemon overlords.Nachmund Rift War (Unknown Date.M42) - The Nachmund Rift War is an ongoing conflict being waged by the Imperium in the Nachmund Sub-sector. Closely related to the recent battles of the War of Beasts and War of Nightmares on the Sentinel World of Vigilus, while Vigilus itself continues to remain largely in Imperial hands the greater Nachmund Gauntlet finds itself under constant siege by the forces of Chaos. Elements of the Ultramarines served in the conflict.Arks of Omen Campaign, Battle of the Malak (Unknown Date.M42) - The Ultramarines participated in the disastrous battle in the Malak System against the assault of the forces of Chaos led by the Daemon Primarch Angron. Unfortunately, the battle resulted in the destruction of the relic Choral Engine, a psychic beacon which might have acted as a temporary replacement for the Astronomican in the Imperium Nihilus, the world of Malakbael and the loss of most of the Indomitus Crusade Fleet Quartus to a spreading wave of Khorne-inspired Chaos corruption and insane berserker rage.Fourth Tyrannic War (Unknown Date.M42) -  The Ultramarines take part in the defence of the Sanctus Line as First Captain Severus Agemman commanded a force of Ultramarines in the Battle of Bastior to defend the Bastior Sub-sector from an assault by Hive Fleet Grendyllus, a tendril of the larger Hive Fleet Leviathan which sought to open a new front against the Imperium after its losses at the Battle of Baal in the relatively undefended western Segmentum Pacificus.Recidious Campaign - The Ultramarines 2nd Company, with the aid of Lieutenant Demetrian Titus who returned to the Chapter from the Deathwatch after being rescued from the Jungle World of Kadaku and forced to cross the Rubicon Primaris, purges the Recidious System of a splinter fleet of Hive Fleet Leviathan. In the course of the campaign an attempt is made by the Thousand Sons Traitor Legion under the command of the Sorcerer Lord Imurah to claim the Warp-based weapon known as Project Aurora that was being developed by the Adeptus Mechanicus on the worlds in the system and use its power to ascend to Daemonhood with the aid of a Tzeentchian Lord of Change. With the arrival of reinforcements led by Chapter Master Marneus Calgar, Titus and his brothers are able to defeat the Thousand Sons during a battle within the Warp itself and destroy the power source of Project Aurora before any lasting damage can be done.