海军本部
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Original Name:海军本部Gender:NeutralScope:Novel-specificStatus:ActiveSource:AIOccurrences:855Chapters:267
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Biodata

Feature Information
Name Marine Headquarters (海军本部)
Base Marineford
Affiliation World Government; its authority is later redefined by the Mary Geoise Treaty 54 57
Occupation / Role Central command of the Navy and its worldwide branch bases 104
Commander Marshal Akira, referred to as Kaku in accounts of the initial takeover 20 58
Status Active
First Appearance Chapter 4

Background / History

Before the takeover, Marine Headquarters served under the World Government and was required to protect the Celestial Dragons, even when civilians received no protection from their abuses. Its leadership also faced an approaching succession problem, with few younger officers considered capable of replacing Sengoku, Garp, and the Three Admirals. 21 27

At the time of the mutiny, Headquarters possessed one hundred thousand elite soldiers and was described as the World Government's most formidable war machine. Akira's stated objective was to unite its Admirals, Vice Admirals, officers, and soldiers under one command, severing the World Government's ability to use the Navy as a divided instrument. 5

Spring of Marineford

Vice Admiral Hound's forces seized the Marineford armory and entered the Headquarters building, forcing personnel to choose between joining Kaku's new war or dying. Communications were cut off as the mutiny isolated Marineford from outside intervention. 8 13

Marshal Sengoku publicly declared that Kaku would temporarily exercise the Marshal's authority, warning that continued resistance would turn Marineford into a bloodbath and that resisters would be treated as traitors. 20

The new regime eliminated senior opponents including Onigumo, Doberman, and Menard. Personnel associated with the defeated faction were offered departure by warship, while most remaining officers ultimately pledged loyalty after Sakazuki and Borsalino also aligned with Kaku. 24 28

Kaku's defeat of Garp with Divine Evasion demonstrated the new Marshal's strength to the entire base. He then ordered a full year's salary to be issued to all officers and soldiers, strengthening Headquarters' internal support. 30 31

Later historians named the mutiny the Spring of Marineford and the era it began the Golden Age of the Navy. 58

Organization

Command Element Composition / Function
Marshal's Command The Marshal directs Headquarters and oversees personnel changes across the Four Seas and Grand Line branches. 27
Akainu Army Commanded by Sakazuki; one of three forces established after the takeover. 26
Kizaru Army Commanded by Borsalino; one of three forces established after the takeover. 26
Aokiji Army Commanded by Kuzan; one of three forces established after the takeover. 26
Vice Admiral Assignments Each of the three initial armies receives six Vice Admirals. 26
Lower-Rank Formation Officers below Vice Admiral are organized into three-person squads. 26
New World First Branch A Red Line-adjacent defensive base continuously garrisoned by veteran Headquarters Vice Admirals and officers. 97

Akira later planned to create three additional Admiral positions, including an army named after Gion's codename, Momousagi. 77

Reforms and Policies

Personnel Welfare and Loyalty

  • Headquarters issued a full year's salary in advance to all officers and soldiers after the mutiny. 31
  • Akira instituted a “salary first” policy, making the funding of personnel a central administrative priority. 250
  • Assets seized from the Roxward Family were designated for compensation for fallen personnel and construction of new naval bases. 184
  • Branch commanders such as Morgan were promoted directly by Headquarters and instructed to recognize only the Marshal's orders. 32

Recruitment and Training

  • The World Conscription drew more than one million applicants, greatly exceeding the original recruitment target. 248 250
  • The Navy's estimated manpower rose from roughly 900,000 personnel to between two and three million after conscription. 267
  • Training shifted toward teamwork and collective awareness rather than individual strength alone. 267
  • Every soldier and officer receives a unique number that may be inherited by descendants, preserving the holder's honor and tying military service to family legacy. 267
  • Headquarters planned Cadet Schools as part of its expanded military system. 36

Authority Under the Mary Geoise Treaty

  • Two Five Elders seats rotate to Marine Headquarters personnel, granting Navy representatives authority to issue orders to non-Navy departments through the Chamber of Power. 54
  • The Marshal holds privileges equal to those of the Five Elders. 57
  • Marine Headquarters controls Shichibukai recruitment, replacement, and possible abolition of the system. 57
  • The Navy may arrest Celestial Dragons who break the law; a Headquarters officer must be present when the Knights of God render final judgment. 428

Justice and Enforcement

  • The post-takeover Headquarters adopted an uncompromising anti-piracy policy, using public executions and large-scale preemptive purge operations to intimidate pirate forces. 71 74
  • During the eastern tour, Headquarters ordered that pirate surrenders would not be accepted. 110
  • Headquarters also began intervening in civilian governance, purging Orleans' royal family and nobles, eliminating human-trafficking groups, and converting Orleans into a city directly administered by the Navy. 300

Major Operations

Operation Result
Marineford Mutiny Headquarters, its communications, and numerous branch bases were brought under the new Marshal's control. 20 32 34
Sabaody Pre-Execution Purge Sakazuki led a crackdown around Marineford and Sabaody Archipelago; pirate forces were hunted, arrested, and executed before the public execution of Edward Weevil and Miss Bakin. 74
Arlong Pirates Operation The Headquarters fleet entered the East Blue, captured the Arlong Pirates, and ordered their execution for attacking a Marine vessel. 106 110
New World War The Navy fought the Beasts Pirates and Big Mom Pirates; Kaido and other high-ranking pirates were ultimately arrested. 133 148
Wano Deployment Headquarters extended its influence into Wano Country after the Beasts Pirates' defeat, with Navy personnel overseeing the country's transformation. 186 226
World Conscription A global recruitment campaign expanded Navy manpower beyond initial projections and strained Headquarters' finances. 248 250

Reputation

  • Marine Headquarters' post-mutiny group photograph displayed the Marshal alongside the Three Admirals, Sengoku, Garp, Zephyr, Vice Admirals, and massed soldiers; major pirate powers interpreted it as unprecedented Navy cohesion. 58
  • Pirates and prisoners came to view the new Headquarters as a potential “nightmare” for pirate forces. 72
  • Underworld financier Duffield referred to Akira as the “King of the Navy” after witnessing the Navy's expansion and the destruction of the Beasts Pirates. 226
  • The organization’s authority eventually became so extensive that its personnel described the current world order as determined not by the World Government, but by the Navy and its Marshal. 428

Trivia

  • Marine Headquarters' News Department published the photograph that became a defining symbol of post-mutiny unity. 58
  • The Headquarters' soldiers use “Loyalty” as a collective salute under Akira's command. 58 106
  • The Marineford base includes an armory, prison, training grounds, family residential area, officer dormitories, and a large plaza used for assemblies and public executions. 8 13 72 77