Korean War order of battle

This is the Korean War order of battle. Subsidiary commands are listed on sub-pages. Where no date is shown for a command, assume it present at the start of the war, on June 25, 1950.

Republic of Korea Armed Forces (prior to June 25, 1950)

 * Flag of the Republic of Korea Armed Forces.svg Republic of Korea Armed Forces
 * ROKA Capital Mechanized Infantry Division Insignia.svg Capital Guard Command, Seoul & Ongjin
 * 3rd Infantry Regiment
 * 8th Infantry Regiment
 * 17th Infantry Regiment
 * 18th Infantry Regiment
 * 1st Cavalry Regiment
 * ROKA 1st Infantry Division Insignia.svg 1st Infantry Division, Kaesong
 * 11th Infantry Regiment
 * 12th Infantry Regiment
 * 13th Infantry Regiment
 * 2division.png 2nd Infantry Division, Daejeon
 * 5th Infantry Regiment
 * 16th Infantry Regiment
 * 25th Infantry Regiment
 * ROKA 3rd Infantry Division Insignia.svg 3rd Infantry Division, Daegu
 * 22nd Infantry Regiment
 * 23rd Infantry Regiment
 * ROKA 5th Infantry Division Insignia.svg 5th Infantry Division, Gwangju
 * 15th Infantry Regiment
 * 20th Infantry Regiment
 * ROK 6th Infantry Division.svg 6th Infantry Division, Chuncheon & Wonju
 * 2nd Infantry Regiment
 * 7th Infantry Regiment
 * 19th Infantry Regiment
 * 7사단.svg 7th Infantry Division, Dongducheon
 * 1st Infantry Regiment
 * 3rd Infantry Regiment
 * 9th Infantry Regiment
 * 8th Infantry Division (South Korea).svg 8th Infantry Division, Gangneung & Jumunjin
 * 10th Infantry Regiment
 * 21st Infantry Regiment
 * ROKA 9th Infantry Division Insignia.svg 9th Infantry Division, Seoul (from October 1950)
 * 28th Infantry Regiment
 * 29th Infantry Regiment
 * 30th Infantry Regiment

United Nations Ground Forces

 * General Headquarters United Nations Command (Korea) (UNC) &mdash; Formally activated 10 July 1950, before then allied forces were formally under American operational control.
 * US Army Forces Far East
 * Eighth United States Army CSIB.svg Eighth Army - Combination of ROK infantry divisions and UN forces
 * U.S. I Corps CSIB.svg I Corps
 * US IX Corps SSI.png IX Corps
 * US X Corps SSI.png X Corps: September 15, 1950 to December 24, 1950.
 * United States ground forces (with attached UN units)
 * 2nd-infantry-division-united-states-army-shoulder-indian-army.png 2nd Infantry Division
 * French Battalion
 * Dutch Battalion (from early 1951)
 * 3rd Infantry Division SSI (1918-2015).svg 3rd Infantry Division
 * 65th Infantry Regiment (from September 1950)
 * Belgian Battalion (from February 1951)
 * Luxembourg Platoon (from February 1951)
 * Greek Battalion
 * 7th Infantry Division SSI (1973-2015).svg 7th Infantry Division
 * Colombian Battalion
 * Ethiopian "Kagnew" Battalion
 * 24 Infantry Division SSI.svg 24th Infantry Division
 * 25th Infantry Division shoulder sleeve insignia.png 25th Infantry Division
 * Turkish Brigade
 * 10th Philippine Battalion Combat Team
 * 40th Infantry Division CSIB.svg 40th Infantry Division
 * 45th Infantry insignia (thunderbird).svg 45th Infantry Division
 * 1st Cavalry Division Patch.svg 1st Cavalry Division
 * Thai Battalion
 * 187INF DUI.png 187th Airborne Infantry Regiment
 * 5INF DUI.png 5th Infantry Regiment
 * United Nations divisions under overall US command:
 * British 27th Infantry Brigade Post War.svg 27th British Commonwealth Brigade (from August 1950-July 1951)
 * British 28th Infantry Brigade (from April–June 1951)
 * 29th Infantry Brigade Formation Patch.svg British 29th Infantry Brigade (from November 1950-July 1951)
 * SSI of the 1st Commonwealth Division.svg 1st Commonwealth Division (from July 1951)
 * Canadian 25th Brigade
 * Australian Battalions
 * New Zealand Artillery Regiment
 * US Marine Corps
 * First Marine Division insignia.png 1st Marine Division
 * Provisional Marine Brigade 1950
 * USMC - 1MAW.png 1st Marine Aircraft Wing
 * Coat of arms of the Republic of Korea Army.svg Republic of Korea Army
 * ROK I Corps
 * ROK II Corps

United Nations Naval Forces

 * Naval Region Japan.png Naval Forces Far East
 * 7th Fleet Logo.png United States Seventh Fleet (from June 27, 1950)
 * Task Force 90
 * Task Force 95 (from September 12, 1950)
 * Task Force 96
 * British Far East Fleet (from June 28, 1950)

United Nations Air Forces

 * US Far East Air Forces
 * 31st Strategic Reconnaissance Squadron (Photographic) (from June 29-November 15, 1950)
 * 91st Strategic Reconnaissance Squadron (Medium, Photographic) (from November 15, 1950)
 * Fifth Air Force - Emblem.png Fifth Air Force
 * Far East Air Forces Bomber Command
 * Twentieth Air Force - Emblem.png Twentieth Air Force

Other

 * Swedish Red Cross Field Hospital (Svenska Röda Korset-sjukhuset)
 * Parachute Regiment Insignia (India).svg Indian Army 60th Parachute Field Ambulance
 * Danish Red Cross Hospital Ship
 * Norwegian Mobile Army Surgical Hospital (NORMASH)
 * Italian 68th Red Cross Hospital (L’Ospedale N. 68 della Croce Rossa Italiana)

North Korean forces

 * Emblem of the Korean People's Army.svg Korean People's Army
 * 1st NKPA Division
 * 2nd NKPA Division
 * 3rd NKPA Division
 * 4th NKPA Division
 * 5th NKPA Division
 * 6th NKPA Division
 * 12th NKPA Division
 * 10th NKPA Division
 * 13th NKPA Division
 * 15th NKPA Division
 * 105th Armoured Brigade
 * 206th Mechanized Infantry Brigade

Notes:
 * NKPA infantry divisions 1 through 7 were regular force infantry divisions used in the attack on South Korea, while the 10th, 13th, and 15th were reserve units used for security.

Chinese forces
People's Volunteers Army November 23, 1950
 * XIII Army Group - General Deng Hua
 * 38th Army - General Liang Xingchu
 * 112th Division (334th, 335th, 336th Regts)
 * 113th Division (337th, 338th, 339th Regts)
 * 114th Division (340th, 341st, 342d Regts)
 * 39th Army - General Wu Xinquan
 * 115th Division (343d, 344th, 345th Regts)
 * 116th Division (346th, 347th, 348th Regts)
 * 117th Division (349th, 350th, 351st Regts)
 * 40th Army - General Wen Yucheng
 * 118th Division (352d, 353d, 354th Regts)
 * 119th Division (355th, 356th, 357th Regts)
 * 120th Division (358th, 359th, 360th Regts)
 * 42nd Army - General Wu Ruilin
 * 124th Division (370th, 371st, 372d Regts)
 * 125th Division (373d, 374th, 375th Regts)
 * 126th Division (376th, 377th, 378th Regts)
 * 50th Army - General Zeng Zesheng
 * 148th Division (442d, 443d, 444th Regts)
 * 149th Division (445th, 446th, 447th Regts)
 * 150th Division (448th, 449th, 450th Regts)
 * 66th Army - General Xiao Xinhuai
 * 196th Division (586th, 587th, 588th Regts)
 * 197th Division (589th, 590th, 591st Regts)
 * 198th Division (592d, 593d, 594th Regts)
 * 1st Motorised Artillery Division (25th, 26th, 27th Regts)
 * 2nd Motorised Artillery Division (28th, 29th, 30th Regts)
 * 8th Motorised Artillery Division (31st, 44th, 45th Regts)
 * IX Army Group - General Song Shi-Lun
 * 20th Army - General Zhang Yixiang
 * 58th Division (172d, 173d, 174th Regts)
 * 59th Division (175th, 176th, 177th Regts)
 * 60th Division (178th, 179th, 180th Regts)
 * 89th Division (265th, 266th, 267th Regts)
 * 26th Army - General Zhang Renchu
 * 76th Division (226th, 227th, 228th Regts)
 * 77th Division (229th, 230th, 231st Regts)
 * 78th Division (232d, 233d, 234th, Regts)
 * 88th Division (262d, 263d, 264th Regts)
 * 27th Army - General Peng Deqing
 * 79th Division (235th, 236th, 237th Regts)
 * 80th Division (238th, 239th, 240th Regts)
 * 81st Division (241st, 242nd, 243d Regts)
 * 90th Div (268th, 269th, 270th Regts)
 * III Army Group - General Chen Geng
 * 12th Army - General Zeng Shaoshan
 * 15th Army - General Qin Jiwei
 * 60th Army - General Wei Jie
 * 179th Division
 * 180th Division
 * 181st Division
 * XIX Army Group - General Yang Dezhi
 * 63rd Army - General Fu Congbi
 * 64th Army - General Zeng Siyu
 * 65th Army - General Xiao Yingtang

Soviet Union

 * 64th Fighter Aviation Corps

Other

 * Foreign Medical Continents
 * Bulgarian Red Cross
 * Czechoslovak Field Hospital (from 1952)