Republic of Korea Armed Forces

Republic of Korea Armed Forces
대한민국 국군 (Korean)
Flag of the Republic of Korea Armed Forces
Founded15 August 1948 (1948-08-15)
Service branches
HeadquartersMinistry of National Defense, Yongsan District, Seoul
Leadership
Commander-in-Chief President Lee Jae-myung
Minister of National Defense Ahn Gyu-back
Chairman of the Joint Chiefs of Staff General Jin Young Seung, ROKAF
Personnel
Military age18
Conscription18–28 years of age:
18 months (Army & Marines)
20 months (Navy)
21 months (Air Force)
Active personnel450,000 (2025)
Reserve personnel3,100,000 (2022) (ranked 2nd)
Deployed personnel1,005 (2022)
Expenditure
Budget61.24 trillion
US$46.3 billion (2025) (ranked 11th)
Percent of GDP2.32% (2025)
Industry
Domestic suppliers
Foreign suppliers
Related articles
History
RanksComparative military ranks of Korea
Military ranks of South Korea

The Republic of Korea Armed Forces (Korean대한민국 국군; Hanja大韓民國國軍; RRDaehanminguk Gukgun; lit. 'Republic of Korea National Military'), also known as the ROK Armed Forces, are the armed forces of South Korea. The ROK Armed Forces is one of the largest and most powerful standing armed forces in the world with a reported personnel strength of 3,600,000 in 2022 (450,000 active and 3,100,000 reserve).

The Republic of Korea Armed Forces traces its roots back to the establishment of the Korean Republic in 1919 wherein its armed wing was called the Korean Liberation Army and it conducted warfare against the Japanese occupation by conducting large-scale offensives, assassinations, bombings, sabotage, and search and rescue missions. Formally founded in 1948, following the establishment of the South Korean government after the liberation of Korea in 1945, South Korea's military forces are responsible for maintaining the sovereignty and territorial integrity of the state and also engage in peacekeeping operations, humanitarian and disaster relief efforts worldwide.