Military

Military#

Armed Forces of the Republic of Korea: Republic of Korea Army (ROKA), Republic of Korea Navy (ROKN, includes Marine Corps, ROKMC), Republic of Korea Air Force (ROKAF); Ministry of Maritime Affairs and Fisheries: Korea Coast Guard; Ministry of Interior and Safety: Korean National Police Agency (2025)

Forces

Armed Forces of the Republic of Korea: Republic of Korea Army (ROKA), Republic of Korea Navy (ROKN, includes Marine Corps, ROKMC), Republic of Korea Air Force (ROKAF); Ministry of Maritime Affairs and Fisheries: Korea Coast Guard; Ministry of Interior and Safety: Korean National Police Agency (2025)

Personnel

approximately 500,000 active Armed Forces (365,000 Army; 70,000 Navy, including about 30,000 Marines; 65,000 Air Force) (2025)

Service age

18-29 years of age for voluntary military service for men and women; mandatory military service for all eligible men 18-35 years of age (typically served from 20-28 years of age); compulsory service obligation is 18-21 months based on the branch of service and up to 36 months for alternative service (2025)

Expenditures

2.3% of GDP (2025 est.); 2.4% of GDP (2024 est.); 2.4% of GDP (2023 est.); 2.4% of GDP (2022 est.); 2.4% of GDP (2021 est.)

Deployments

250 Lebanon (UNIFIL); 275 South Sudan (UNMISS); approximately 150 United Arab Emirates (2025)

Hierarchy#

Order of battle from the constitutional commander down to the service branches. Refine the boxes and edges to match the current chain of command.

        flowchart TD
  CinC["Commander-in-Chief"]
  MoD["Minister of Defense"]
  CoD["Chief of Defense"]
  Army["Army"]
  Navy["Navy"]
  Air["Air Force"]
  Spec["Special / Strategic"]
  Para["Paramilitary / Gendarmerie"]

  CinC --> MoD
  MoD --> CoD
  CoD --> Army
  CoD --> Navy
  CoD --> Air
  CoD --> Spec
  MoD -.- Para

Industry#

Defense-industrial base. Domestic primes, state arsenals, and joint ventures producing weapons, ammunition, platforms, or sensitive electronics. Operators map these to track procurement, export controls, sanctions exposure, and supply-chain access. Cross-reference SIPRI Arms Industry Database, Jane’s, and the country’s procurement gazette.

Company

Site

Ownership

Products

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Frequencies#

Military and government radio frequency allocations the operator collects, monitors, or jams. Bands listed by service and primary use. Cross-reference national radio regulator publications, ITU Radio Regulations, Radio Reference, UDXF, and SIGIDWIKI before relying on the entry. Many bands are protected; check OPSEC and legal posture before listening or transmitting.

Service

Band

Frequency

Use

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Radios#

Tactical and strategic radio sets fielded by the country’s military, intelligence, police, and emergency services. Operators use this to predict modulation, waveform, encryption, and interoperability. Cross-reference Jane’s C4ISR, SIPRI trade register, and vendor catalogues for fielded inventory.

Model

Manufacturer

Band

User

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Weapons#

Fielded weapon systems across the armed forces, organised by domain. Operators use this to plan threat avoidance, signature collection, and procurement-supply analysis. Cross-reference SIPRI Arms Transfers Database, IISS Military Balance, Oryx, Jane’s, and the country’s own white papers.

Domain

System

Origin

Quantity

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Small arms#

Small arms in military, police, and civilian hands. Operators use this to identify weapons on contact, predict the grey-market flow, and scope force-on-force engagements. Cross-reference Small Arms Survey, ATT-Monitor, ARES research notes, and the country’s firearms-registry gazette.

Class

Model

Caliber

Origin

User

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Suppliers#

Foreign weapon suppliers feeding the armed forces, security services, and irregulars in the country. Operators map these to predict resupply, attribute battlefield wreckage, gauge diplomatic dependencies, and identify the procurement officers worth working. Cross-reference SIPRI Arms Transfers Database, UN Register of Conventional Arms, Trade Data Monitor, and country-of-origin export control gazettes.

Supplier

Origin

Items

Period

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