The Gotei 13 are the primary military branch of the Soul Society. They are a feudalistic society, similar to the samurai class of ancient Japan. They have a very traditional, honour driven society where name and rank mean everything. Any regular soul with above average levels of Reiryoku can apply to join the Gotei 13, and if found worthy will be trained in the art of the Shinigami. They are armed with a blade known as a Zanpakutō, an extension of the Shinigami's own soul that allows them to purify corrupt souls.

The primary directive of the Gotei 13 is guarding the Circle of Transmigration. Soul Society and the World of the Living run parallel to each other. The content of souls in each realm must remain balanced, otherwise the harmony between the two realms will fall into disarray, and the dimensions will collide. Were this event to happen, both realms would be all but destroyed, and the souls that survived the collision would be stuck in a chaotic maw where life and death exist on the same plane.

In order to prevent this from happening, the Gotei 13 were formed. Their Shinigami ranks maintain the balance between Soul Society and earth. Souls that die on one world are reborn on the other. So, by removing souls from both worlds when one becomes too unbalanced, as well as purifying corrupted souls known as hollows to keep the numbers constant, the Shinigami keep the Circle of transmigration constant, and avoid this cataclysm.

Beyond this, The members of the Gotei 13 are tasked with guarding the Seireitei and the inner districts of the Rukongai within the soul society, as well as guiding trapped human souls by performing a konso, or soul burial. They also deploy Shinigami world wide to keep hollow numbers down in order to maintain the balance, as well as guard areas of note such as spiritual tipping zones and areas where the fabric between the worlds is weak.

The Gotei 13 have thirteen divisions, each with their own purpose and specialisations. They take their orders from central 46, an organisation acting on behalf of the soul king, as well as the Captain commander. Each division has a captain which leads them, and a Lieutenant who assists the captain in their duties. After the Captain and Lieutenant, each Division has four "seats" ranging from third to sixth. If an individual has not earned one of these ranks, they are known as seatless, and have no authority or power.

Rank ups inside the Gotei 13 squads are managed in several ways. Lieutenants are assigned by the Squad's Captain, as are the seated officers. These positions can be challenged for, however. To do so requires one on one combat with the individual whose position you wish to acquire. This fight cannot be lethal, and if one party desires the fight be judged it must be judged. This method does not apply to captain positions which have their own unique rules.

Captain positions are decided in three ways;

Captain Proficiency Test: An empty captain position can be obtained by passing a captain's Proficiency Test. Three captains including the captain-commander must be present for this test, and be satisfied with their ability to perform the role adequately. This requires the ability to perform a Bankai.

personal recommendation: An individual can also become a captain by obtaining personal recommendations from at least six active captains, and approval from at least three of the remaining seven. An active captain can also be forcefully retired this way, if a recommended replacement meets these requirements. This method cannot be applied to the Captain Commander.

Trial by Combat: The final way to become a captain is to defeat a captain one-on-one with at least 200 witnesses from the captain's division. This method also allows one to bypass having the mastery of Bankai or other possible abilities that a captain would otherwise be required to have knowledge of, as it allows no judgement from captains who would require those skills as a prerequisite to join their ranks. This fight must be judged, and it must be to the death.

Tree of Command:

The First Division is in charge of protecting the Court of Pure Souls. Their only duty is to protect the Central 46 and work with them to help govern Seireitei. They are lead by the Captain Commander.

1st Division Captain: Senrei Yamamoto Weaponry: Transcender Secondary: Grandmaster Bond: Transcender Movement: Grandmaster Offensive Magic: Grandmaster Defensive Magic: Grandmaster Perception: Grandmaster

The Second Division is stealth corps. They are tasked with managing the Prisoner population, policing Seireitei and assassinating noteworthy targets. They are the Seireitei's Jailers, and their executioners. Members of this squad are talented tightly associated with the Hakuda way of fighting, and they often feel it is dishonorable to be forced to draw their blade.

2nd Division Captain: Yoruichi Shihōin Weaponry: Amateur Secondary: Transcender Bond: Amateur Movement: Grandmaster Offensive Magic: Grandmaster Defensive Magic: Advanced Perception: Advanced

The Third Division is dedicated to Intelligence. They manage the paperwork of Seireitei, organising the squads and ensuring everything is kept in order. Beyond their task as the Record Keepers, they function similarly to the thirteenth squad; reinforcing weak points in other squads.

3rd Division Captain: Sasuke Kazuhiro Weaponry: Grandmaster Secondary: Grandmaster Bond: Grandmaster Movement: Grandmaster Offensive Magic: Grandmaster Defensive Magic: Grandmaster Perception: Grandmaster

The Fourth Division is the Medical and Supply division. The Fourth Division is tasked with healing the injured. Their members are often assigned to small squads to ensure the health of the warriors within them. When not treating the injured, members of the Fourth Division are tasked with manual labour tasks, such as cleaning the Seireitei.

4th Division Captain: Izumi Aoihime Weaponry: Master Secondary: Apprentice Bond: Master Movement: Adept Offensive Magic: Master Defensive Magic: Transcender Perception: Master

The Fifth Division is the Kido Squad. They were fused with the Kido Corps hundreds of years ago, and all of their members excel in using Kido in combat. As such,members of the Fifth Division often supply support from the back lines during combat, using their Kido to assault the enemy from a distance.

5th Division Captain: Kisuke Urahara Weaponry: Master Secondary: Apprentice Bond: Master Movement: Adept Offensive Magic: Transcender Defensive Magic: Master Perception: Master

The Sixth Division is dedicated to Counter Intelligence. They are tasked with rooting out traitors among the Shinigami ranks, as well as protecting state secrets.

6th Division Captain: Rukia Kuchiki Weaponry: Master Secondary: Apprentice Bond: Master Movement: Adept Offensive Magic: Transcender Defensive Magic: Master Perception: Master

The Seventh Division is dedicated to the protection of Rukongai. They deal with complaints from the Rukongai districts, as well as search for spiritually gifted souls to become Shinigami.

7th Division Captain:Ryou Kurosawa Weaponry: Master Secondary: Intermediate Bond: Master Movement: Intermediate Offensive Magic: Intermediate Defensive Magic: Intermediate Perception: Intermediate

The Eighth Division is dedicated to the Protection of Seireitei. During times of war, they are the Division that manages defending the Seireitei borders. They are also tasked with defensive tactics, and work closely with the Tenth and Eleventh Divisions to manage combat tactics.

8th Division Captain: Shunsui Kyōraku Weaponry: Master Secondary: Expert Bond: Master Movement: Expert Offensive Magic: Advanced Defensive Magic: Expert Perception: Expert

The Ninth Division is tasked with managing Internal Affairs. They work closely with the Second Division to manage prisoner sentences, as well as managing complaints. They work to keep inter-squad issues to a minimal.

9th Division Captain: Kyo Mikkoku Weaponry: Master Secondary: Adept Bond: Master Movement: Expert Offensive Magic: Adept Defensive Magic: Adept Perception: Adept

The Tenth Division is dedicated to managing combat tactics, and all large scale ops. They manage creating combat squads from members of the other divisions, and arrange all tactical movements. They work closely with the Eighth and Eleventh Divisions.

10th Division Captain: Tōshirō Hitsugaya Weaponry: Master Secondary: Apprentice Bond: Master Movement: Adept Offensive Magic: Grandmaster Defensive Magic: Adept Perception: Expert

The Eleventh Division is dedicated to Offensive operations. All their members are close quarters combat experts, dedicated to melee based engagements. As such, members with Kido based releases are transferred out of the squad, as they feel they should only consist of melee fighters.

11th Division Captain: Kensei Muguruma Weaponry: Grandmaster Secondary: Master Bond: Master Movement: Expert Offensive Magic: Adept Defensive Magic: Adept Perception: Expert

The Twelfth Division is dedicated to Science. They are researchers, who develop new technologies and weaponry. They help analyse the abilities of new enemies, a well as come up to solutions to overcome the weaknesses of the Shinigami in the face of certain opponents.

12th Division Captain: Mayuri Kurotsuchi Weaponry: Master Secondary: Apprentice Bond: Master Movement: Adept Offensive Magic: Expert Defensive Magic: Expert Perception: Transcender

The Thirteenth Division is the Reserve Guard. They exist solely to help plug holes in the other Twelve Squads. They often get Shinigami who are unexceptional post graduation, so that they can help them improve their skills further.

13th Division Captain: Keiichi Sanjou Weaponry: Master Secondary: Adept Bond: Master Movement: Expert Offensive Magic: Advanced Defensive Magic: Grandmaster Perception: Expert

The Vandenreich are the last remaining bastion of the Quincy race. Following the Quincy massacre, only the Vandenreich battalions survived. As their members are raised under constant threat of annihilation at the hands of the Shinigami, every member of the Quincy has an inherent hatred of them. Natural warriors, the members of the Vandenreich are raised from a young age in a rank and file manner, taught the art of war from the time they can walk.

The Vandenreich has many smaller branches world wide, managing communications and giving the Quincy an active foothold in every major nation. Through these branches, they monitor the Shinigami in secret, gathering information on their movements and actions. Their main headquarters however, is known as the Schatten Bereich; a massive castle in the German wilderness. Here, the Vandenreich operates in complete safety, beyond the eyes of the Shinigami and Arrancar.

The Vandenreich use a military hierarchic, though they are ruled by a monarchy. The royal family of the Vandenreich are descendants of the original commander general of the Vandenreich; Juhabach. After all other forms of Quincy command were eliminated, Juhabach became the Emperor of the Vandenreich. After his death, his only child took his place, and the monarchy was created.

Beyond the monarchy, the Vandenreich have five branches, known as Battalions. Each of these Battalions are lead by a General. These are the Vandenreich equivalent of a captain of the Gotei 13. Each General is accompanied by a Major, the equivalent of a Lieutenant. After the general and major, each battalion has four Lieutenants, ranging from first to fourth. These are the equivalent of seated officers. If an individual has not earned one of these ranks, they are known as a Soldat, the equivalent of an unseated soldier.

Rank ups inside the Battalions are managed in several ways. Lieutenants are assigned by their Battalion's general, as is their Major. Generals are assigned by the the Emperor of the Vandenreich. If an individual Quincy desires to challenge for a position above their current rank, they must request permission for a duel from either their General if challenging for a major/Lieutenant position, or from the Emperor if challenging for a General position. If permission is granted, Judged combat between the parties in question will be initiated. These combats are refereed, and death is prohibited. If an individual is defeated and loses their position, they cannot challenge for it back for at least a real world month. The only Battalion position that cannot be earned via combat is General of the first Division, as it is reserved for the Emperor of the Vandenreich; a position handed down via a bloodline.

Tree Of Command:

The First Battalion are the tacticians and strategists of the Vandenreich. They don't specialize in any particular field, but are rather jack of all trades. In squads, members from the First Battalion are typically assigned logistics roles, commanding squads and running operations. When not in combat, members of this Battalion manage the affairs of the Vandenreich, helping develop new technologies and finding new ways of increasing their military might. The commander of the First Battalion is a position reserved for the Emperor of the Vandenreich.

1st Battallion General: Fenrir Gudmundur Weaponry: Master Secondary: Master Bond: Transcender Movement: Master Offensive Magic: Master Defensive Magic: Master Perception: Master

The Second Battalion are the foot soldiers of the Vandenreich. They specialize in Bogenschießen based combat, and are typically very loyal to that specific school of combat, feeling ashamed if they are forced to resort to using Schwertkunst or Zaubersprüche. In squads, members from the Second Battalion are typically assigned combat roles, acting as the backbone of a Vandenreich platoon. When not in combat, members of this Battalion police the Schatten Bereich, managing prison populations and handling disputes.

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The Third Battalion are the artillery unit of the Vandenreich. They specialise in Zaubersprüche based combat, and together with the Second Battalion make up the military might of the Vandenreich. In squads, members from the Third Battalion are typically assigned combat roles, filling in the back lines and barraging opponents from afar with offensive spells. When not in combat, members of this Battalion guard the Schatten Bereich, patrolling it's borders and running counter-intelligence operations to ensure no spies manage to infiltrate the Vandenreich.

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The Fourth Battalion are the shadow operatives of the Vandenreich. They specialize in Schwertkunst based combat, and pride themselves in killing opponents before they can see it coming. In squads, members from the Fourth Battalion are typically sent on special missions, flanking enemy lines and infiltrating. When this is not possible, they join the Second Battalion on the front lines. When not in combat, members of this Battalion are intelligence officers. They manage the various Vandenreich headquarters world wide, and are in charge of gathering and managing information on both current and potential threats.

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The Fifth Battalion are the support operatives of the Vandenreich. They specialize in Blut techniques, and shy away from active combat roles unless they have no other option. In squads, members from the Fifth Battalion are typically assigned support roles, providing medical support and erecting defensive barriers to protect follow squad members. When not in combat, members of this Battalion are the resource managers of the Schatten Bereich, managing food stocks, medical supplies and other needs the Vandenreich require.

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La Legión is the main army of Hueco Mundo, acting under direct service of the king Of Hueco Mundo. Beyond following the orders of their superiors, they have no real purpose. As they started their existence as hollows, the Arrancars that comprise the ranks of La Legión are all bloodthirsty killers. As such, standing is determined by strength and strength alone. The king of Hueco Mundo is simply the strongest individual in the land, rather than a bloodline or anything monarchical like the name would imply.

La Legión uses a numerical classification system for their rankings. The first ten numbers, 0 to 9, are the Espada. These are the strongest Arrancar in La Legión, captain class warriors that comprise the might of the army. The rankings of the Espada are simple; the lower the number,the stronger the Espada. An Espada position can be acquired easily, simply by challenging the Arrancar to a judged, death enabled fight. If the Arrancar is defeated, the individual who defeats him may either kill them or cast them out. Either way, the victor takes the position. If the Espada loses and is cast out, their number is burned off, they are given a four digit number and they can never rejoin the Espada. These individuals are known as the Privaron Espada.

Beyond the Espada, the Arrancar have no classification. They are instead simply "Números" Every non Espada Arrancar is a member of the Números, and are given a number between 10 and 999 based on when they joined the organisation. There is no significance to these numbers in terms of power.

An Espada can assign a member of the Números to become their personal servants, known as a Fracción. Each Fracción lives with their Espada master inside their respective Las Noches palace. While they do not have the authority of an Espada, all Fracción outrank Números.

Tree Of Command:

King Of Hueco Mundo: Baraggan Louisenbairn Weaponry: Transcender Secondary: Master Bond: Transcender Movement: Grandmaster Offensive Magic: Grandmaster Defensive Magic: Master Perception: Grandmaster

	Cero Espada: Plata Margana Weaponry: Expert Secondary: Grandmaster Bond: Master Movement: Master Offensive Magic: Master Defensive Magic: Master Perception: Master		Primera Espada: Ulquiorra Cifer Weaponry: Expert Secondary: Expert Bond: Master Movement: Expert Offensive Magic: Transcender Defensive Magic: Expert Perception: Expert
	Segunda Espada: Unrevealed Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????		Tercera Espada: Unrevealed Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????
	Cuarta Espada: ?????? Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????		Quinta Espada: Unrevealed Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????
	Sexta Espada: Grimmjow Jaegerjaquez Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????		Séptima Espada: Unrevealed Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????
	Octava Espada: Unrevealed Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????		Novena Espada: Unrevealed Weaponry: ?????? Secondary: ?????? Bond: ?????? Movement: ?????? Offensive Magic: ?????? Defensive Magic: ?????? Perception: ??????