Imperial Fists army rules, detachment abilities, stratagems and lore for Warhammer 40k, with links to the full unit datasheet table.
The Imperial Fists are one of the First Founding Chapters of the Space Marines and were originally the VII Legion of the Legiones Astartes raised by the Emperor Himself from across Terra during the Unification Wars.
The Imperial Fists stand out from other Space Marine Chapters since they possess no fixed homeworld, although they are most frequently based on Terra. Instead, the Imperial Fists rely on their 10,000-year-old mobile space fortress, Phalanx, to serve as their fortress-monastery.
They maintain recruitment-chapels on various worlds spread throughout the Imperium. Part of the Imperial Fists' duties during the Great Crusade were to function as the Emperor's "personal praetorians," accompanying Him everywhere.
The Imperial Fists were usually used to strike a decisive blow against the enemies He confronted during that time. The role of the Emperor's bodyguards since he was mortally wounded during the Horus Heresy and interred within the Golden Throne at the heart of the Imperial Palace on Terra has now been entirely taken over by the Adeptus Custodes. But the Emperor's ancient trust remains a potent honour for the Imperial Fists and their Successor Chapters in the present day.
The Imperial Fists are the inheritors of the proud traditions of Primarch Rogal Dorn, his name venerated by countless trillions across the Imperium. History does not clearly record the details of the world on which the infant Dorn was cast when the primarchs were scattered to the corners of the galaxy. What is known is that he presented himself to the Emperor as the Great Crusade reached the Ice Hives of Inwit, offering one of the mightiest space-going vessels ever constructed by Humans during the Dark Age of Technology as a sign of his fealty.
The Emperor welcomed His long-lost son into the ranks of the primarchs and granted him primacy over the Imperial Fists Legion. The Master of Mankind returned Dorn's vessel -- called Phalanx -- to the primarch, and it became the base from which Dorn, and sometimes the Emperor Himself, commanded some of the most glorious campaigns of the Great Crusade.
Dorn and his Legion proved the masters of every aspect of warfare, but in particular the Imperial Fists excelled at siege craft, whether on the attack or the defence. This propelled them into a bitter rivalry with the Iron Warriors Legion and their jealous primarch Perturabo, the flames of which were wantonly fanned by Fulgrim, the primarch of the Emperor's Children Legion.
Fulgrim is said to have asked Dorn if a fortification of his design could withstand an assault by the Iron Warriors, and Dorn is said to have answered that it could. Perturabo took the answer as a boastful sleight, and the seeds of a hatred that would only grow more bitter as the Terran millennia passed were sown.
Loyalty in time of betrayal was not easy to measure, for one cannot look at the face of an ally and know if he is truly a friend or an enemy. Even after Horus' treachery was made manifest upon the plains of Isstvan III and the Drop Site Massacre of Isstvan V, the truth of who was Traitor and who remained loyal was far from clear.
In this age of betrayal, one Legion stood as a pillar of loyalty amongst the sea of doubt. The Imperial Fists and Rogal Dorn, ever true, never swerving from the toll demanded by a war of brothers, bore the weight of loyalty without breaking, but not without cost. Sacrifice without limit changed those who survived.
As fate would have it, Dorn's prediction was put tragically to the test when, at the height of the Siege of Terra, the fortifications he had added to the Imperial Palace were sorely tested by the Traitor Legions.
If the Emperor was the father of the Legiones Astartes, then Terra was their mother. Just as the Emperor shaped His warriors with His will and intellect, so too did Terra leave her mark on the warriors raised from her soil.
These marks, or scars it might be more accurate to say, often shaped a Space Marine Legion's culture, values and methods of war in ways as subtle and deep as the mysteries woven into their flesh. To understand how many of the Legions became as they were, one must first understand Terra.
Soaked in blood, ignorance and atrocity, Old Earth in the time before the rise of the Emperor was devoid of hope and existed in a state of darkness. The only order was that of tyrants: fleeting and tainted by madness and petty ambition.
The Emperor changed that -- first with His hosts forged from the techno-barbarian tribes who took up His banner, then with his army of gene-forged Thunder Warriors, then with the creation of the Legiones Astartes. With blood and fire He tamed Terra, bringing order and enlightenment where before there had been none. It was this transformation that the VII Legion was made to protect.
The first battalions of the VII Legion were raised from across Terra as shown by their earliest battle honour, "Roma." While many other Legions drew their recruits from a particular ethnic or national source, the flesh of the VII Legion came from the people of Terra as a whole.
Even in domains where other Legions had "Rights of Tithe," the VII Legion took some of the youths as initiates. Often these would be those who exhibited the greatest capacity for endurance, both in mind and body. Many were of a taciturn nature, slow to talk but quick to act.
Why so many of such a wide pool of recruits should be similar is unclear. Certainly, the processes used to activate the VII Legion's gene-seed seem to have inflicted intense pain, and so perhaps it was a purposeful selection of stock suited to surviving the augmentation process. It is also possible that a pattern of recruitment once formed perpetuated until it was tradition. No matter the reason, the grim nature of those recruited into the VII Legion was well-suited to their use.
In war the VII Legion was concerned with conquest. While all of the Emperor's forces fought and died to expand the Imperium, many saw only part of the greater vision. Defeat the enemy, tear down their strongholds, break their beliefs and still you would have a land that could turn against the Imperium in the future, or provide other enemies with a weakness to strike at. Victory was not enough, to conquer one had not only to defeat one's enemies, but to hold the fruits of that victory.
This philosophy underpinned every action of the VII Legion. In attack they would pay any price in their own blood to secure victory, and once they had victory they would begin to consolidate what they had taken. This pattern can be seen time and again in the later conquest of Ancient Terra.
It was the VII Legion which broke the Cities of the Crystal Sea, and then raised the Fortress of the Fifth Circle from their ruins. In the ice-wrapped pinnacles of Himalazia (Himalayan Mountains) they lost three battalions to secure the defeat of the witchery of the Wind Caller clans, but the first Imperial bastions began to rise against the cold sky within solar days of that victory.
At the time of Horus' betrayal, much of the early Legion structure remained in the Imperial Fists. Ever a practical leader, Rogal Dorn most likely saw little reason to change what had been proven to work. So it was that the base components of the VII Legion and the system of hierarchy used were little changed from its early days.
As the Great Crusade progressed, however, the Legion's particular role and developing preferences for waging war began to change this. Along with the Legion's bias for recruitment, these factors created a number of key differences at every level of the VII Legion.
At the squad level, the Imperial Fists showed a noted schism in their dominant unit types as time passed. Firstly of note was the number of assault-configured units, which was very high, as were auxiliary units armed with specialised weaponry suited to the destruction of amour and fortifications.
The second notable dominance was that of heavy weaponry -- whether mounted on vehicles or carried by Legionaries -- which was selected not only for raw power but also for its accuracy and adaptability in the field, with, for example, the multi-purpose Missile Launcher preferred over the arguably more indiscriminate Autocannon and the precision and range of the Lascannon over the shorter-ranged Multi-Melta.
The Imperial Fists were also amongst the strongest proponents of the development of Tactical Dreadnought Armour, and fielded a large number of squads equipped in all patterns of the so-called "Terminator Armour." Notably, they also were amongst the first to field significant numbers of the Indomitus Pattern Terminator Armour produced by the forges of Deimos, the moon of Mars.
At the time of the Horus Heresy, they alone fielded Terminators armed with prototypes of the Absinio and Iliastus Pattern Assault Cannon, retrofitted and re-scaled from the Kheres Pattern which had proved such a powerful addition to the Contemptor Pattern Dreadnought chassis.
Above the squad was the company, in this case a formation which could vary in size from a few squads to several hundred Imperial Fists. The strength of companies often waxed and waned as they took casualties, or were bolstered by fresh recruits.
No matter their size, each company was grouped into a battalion, and two battalions paired together were often referred to as a regiment, but latterly also called a "crusade" or "household".
Larger formations comprised of multiple companies were formed as needed for a particular task or deployments, rather than as standing units.
Within the Imperial Fists, there are many formations from squad to household where names and deeds shone bright in the days of the Great Crusade. To list the histories of them all would demand more than the text can bear, but even such an abbreviated inspection cannot pass over the Templars.
Raised by Rogal Dorn during the first solar decade of his command, the Templars were the warriors charged with guarding the Temple of Oaths aboard the Phalanx. No fane of superstition or misguided religion in violation of the Imperial Truth, this secular Temple was dedicated to the ideals of the Great Crusade and the sacrifices it demanded.
There, beneath the tattered and burned banners of defeated enemies and amidst the statues of dead heroes, the Imperial Fists returned to renew their perpetual oaths of loyalty to the Emperor and their Primarch.
After the losses incurred in the Iron Cage during the Great Scouring, what remained of the Imperial Fists was a hardened, veteran force fully able to embrace the concepts of the Codex Astartes; alongside the Ultramarines, the Imperial Fists have become the epitome of Codex doctrine.
All ranks are able to make tactical decisions and are encouraged to act on their own initiative. The Imperial Fists combine all arms in flexible balanced battle groups each of which can present an opponent with a diversity of threats, then press their attack so swiftly that the foe is overwhelmed before he can react.
The Imperial Fists since the Heresy have retained their traditional skills in urban and siege warfare, although they are quite willing to engage and defeat the enemy in open battle in any environment. They will use fortifications on the defensive, but only after all of the more aggressive options have been exhausted.
The Fists' only weakness is perhaps a reluctance to accept the possibility of defeat. This sometimes blinds them to the risks inherent in their aggressive stratagems.
Following the dissolution of the old Legions, Rogal Dorn also secretly established a contingency known as the "Last Wall Protocol." This contingency was only to be enacted in the event Terra was under grave threat, or perhaps had even fallen to the enemy.
Then the sons of Dorn would come together to deal with the matter as one. Even if the Imperial Fists Chapter itself were destroyed, the other successors of the old Legion would remember. This protocol would be enacted nearly 1,500 Terran years after the end of the Heresy in the mid-32nd Millennium during the War of the Beast.
Like all Codex Astartes-compliant Space Marine Chapters, the Imperial Fists are divided into 10 companies comprised of 100 Space Marines each.
Each company is led by a hero of the Chapter with the rank of captain, who -- in addition to his company command -- is in charge of a particular aspect of the Chapter's logistics.
The following order of battle of the Imperial Fists represents the Chapter as it stood prior to the Miral II Crusade in ca. 997.M41 before the introduction of the Primaris Marines during the Era Indomitus.
Like their fellow Chapters of the Adeptus Astartes, the Imperial Fists also maintain a Librarium of potent psykers who are highly talented and trained to master the power of the Warp at the highest levels.
Each Chapter selects its Librarians in its own way, either from seed worlds, as it does with the bulk of its Initiates, or from the ranks of gifted psykers brought to the Scholastica Psykana.
Being a space-borne Chapter, the Imperial Fists recruit from a variety of worlds, including Terra and Necromunda. The Chapter maintains a great number of Fortress-Chapels on planets across the Imperium. Such places are staffed by small, dedicated cadres of Veterans, perhaps Imperial Fists warriors wounded so grievously they can no longer fight, but are still well able to serve their Chapter. However, the Imperial Fists have no special political rights on the worlds where they recruit their Neophytes as other Chapters do. The staff of these facilities keep a watch upon the peoples around them, seeking potential candidates for recruitment. On some worlds they hold tournaments and contests to ascertain suitability, while on others they actually instigate combat in order to test potential recruits in person. On some Hive Worlds, the Imperial Fists conduct purges of the down-hive slums, ostensibly to clear out undesirable elements on behalf of the planetary government, but they often return with captives they have judged such worthy fighters they will be invited to undertake the trials to become a Neophyte of the Chapter.
The Imperial Fists are unusual in making few, if any, demands of the peoples of the worlds they recruit from, other than the right to test those who believe themselves worthy of entering the ranks of the Battle-Brothers.
Lore excerpt from Warhammer 40k Wiki on Fandom, available under CC BY-SA 3.0.