"If you see your allies losing, that's your chance. Don't step between them. Take the enemy down from behind. And if the enemy is so strong you can't even do that, then just watch your ally be killed. That's what it means to be Onmitsukidō."
The Onmitsukidō (隠密機動, secret tactics, called the Stealth Force in the English dub), also called the Secret Mobile Unit/Corps, Special Forces or Covert Ops, is the second largest organization that Shinigami join, and one of the three main branches of military in Soul Society.
History
Originally a separate branch of Soul Society's army, the Onmitsukidō was traditionally tied to the Shihōin family. When the Commander-in-Chief would gain a title within the Gotei 13, the Onmitsukidō would become attached to that division as well. The Onmitsukidō is generally commanded by a member of the noble family Shihōin, though the last member to hold this position was Yoruichi Shihōin before she departed Soul Society around 100 years before the main story line. Since that time, the Special Forces seem to be highly merged with the Gotei 13's 2nd Division.
Mission
The Onmitsukidō is one of the three forces under the direct supervision of the Central 46 Chambers. If the Gotei 13 operate openly, the Onmitsukidō patrols and conducts surveillance in enemy territory and carries out top-secret operations, such as assassinations and the execution of Shinigami who have broken the law. If the Gotei 13 are considered an exterior guard, then the Onmitsukidō is an interior, covert guard.
Organization
StructureThe Onmitsukidō is made up of five components: They are split into five divisions all excelling in specific specializations.
The Onmitsukidō is led by a Commander-in-Chief (総司令官, sōshireikan), who has the statuary authority to conduct all the affairs of the Onmitsukidō; while deferring to the authority of the Central 46 Chambers in matters involving Soul Society and the Captain-Commander in all military matters.
The leaders of each of the divisions are ranked as Corps Commander (軍団長, gundanchō). Given that the Onmitsukidō is currently tied with the Gotei 13's 2nd Division, each Corps Commander also holds a Seated Officer position in said division. The Commander-in-chief of the Onmitsukidō generally also commands top division of the Onmitsukidō, which is the Executive Militia and it is known that the lieutenant is the Corps Commander of the Patrol Corps and the 3rd Seated Officer is the Corps Commander of the Detention Unit. It may be said that the order of the five divisions also goes in order of the top five officers of the 2nd Division. (Unlike the Gotei 13 Captains, the Commander-in-chief has several bodyguards).
DivisionsExecutive Militia (刑軍, keigun; lit. "Punishment Force")
Led by the Commander: Jishin Himei
Functions The first branch of the Onmitsukidō. It is ranked the highest of the five branches in the division. The Executive Militia carries out missions that involve combat. They specialize in the unarmed combat technique known as Hakuda and is able to operate silently and in secrecy. Their responsibilities including punishment and assassination of ex-comrades who break the law and acting as scouts during battle against Hollows. Its members are dressed all in black and are known for their cold-bloodedness. It is normally headed by the the Commander-in-chief of the Onmitsukidō.
Patrol Corps (警邏隊, keiratai; Security Force)
Led by the Lieutenant: N/A
FunctionsThe second branch of the Onmitsukidō. The Patrol Corps is assigned mainly to the Seireitei area and gathers data on uprisings. In the event of those under house arrest escaping they also are tasked with finding and apprehending them. Externally they patrol the various lands and dimensions to combat dangerous Hollows and other enemies of Soul Society.
Detention Unit (檻理隊, kanritai)
Led by 3rd Seat: N/A
Functions[/center]
The third branch of the Onmitsukidō. The Detention Unit is responsible for the imprisonment and supervision of all criminals within the Seireitei. They also have another duty known as Special Detention, which concerns those who joined the Gotei 13 but were judged to be a danger to their fellow Shinigami. They investigate, apprehend, and keep these individuals sealed away from the rest of Soul Society within the Special Underground Detention Facility, aka. the Nest of Maggots. It should be noted that those few who are kept in the Maggots' Nest have not actually committed any crime but have been identified by the laws of Soul Society as "Dangerous Elements". This unit acts somewhat similar to a prison and mental rehabilitation center.[8] The activities of this division are shrouded in mystery and remains virtually unknown to the majority of the public as well as most Gotei 13 members up to the level of Lieutenant.
Unknown Division (Has not been named in anime or manga)
Led by Unknown Seat: N/A
FunctionsN/A
Reversal Counter Force (裏挺隊, riteitai; Secret Remote Squad, Correctional Force)
Led by 5th Seat or 4th Seat: N/A
FunctionsThe fifth branch of the Onmitsukidō. The Reversal Counter Force serves as the communication link for division members. A special ops unit that is mobilized whenever a mission is urgent and requires secrecy. Many of its members are masters of Shunpo[/size]