This is the order of battle for the invasion of Iraq during the Iraq War between coalition forces[1] and the Iraqi Armed Forces; Fedayeen Saddam irregulars; and others between March 19 and May 1, 2003.
The United States Army has defined an "order of battle" as the "identification and command structure" of a unit or formation. Operation Iraqi Freedom force organization changed frequently.
In the listings below "BN" refers to a battalion, a military unit. In the United States and United Kingdom, a combat battalion is usually approximately 600-800 personnel strong.
See main article: Coalition Forces Land Component Command. Lieutenant General David D. McKiernan, Commanding.[2]
See main article: I Marine Expeditionary Force.
Lieutenant General James T. Conway, Commanding General
1st Marine Division (reinforced)[2]
Major General Jim Mattis, Commanding General
3rd BN, 1st Marine Regiment[2]
1st BN, 4th Marine Regiment[2]
2nd BN, 23rd Marine Regiment[2]
2nd Light Armored Recon Battalion[2]
1st BN, 5th Marine Regiment[2]
2nd BN, 5th Marine Regiment[2]
3rd BN, 5th Marine Regiment[2]
1st Light Armored Recon Battalion[2]
1st BN, 7th Marine Regiment[2]
3rd BN, 7th Marine Regiment[2]
3rd BN, 4th Marine Regiment[2]
3rd Light Armored Recon Battalion[2]
1st BN, 11th Marine Regiment (155-mm Towed Artillery)[2]
2nd BN, 11th Marine Regiment (155T)[2]
3rd BN, 11th Marine Regiment (155T)[2]
5th BN, 11th Marine Regiment (155T)[2]
1st Field Artillery Detachment (Airborne)[2]
3rd BN, 27th Field Artillery Regiment (MLRS)[2]
1st Reconnaissance Battalion[2]
2nd Assault Amphibian Battalion[2]
3rd Assault Amphibian Battalion[2]
2nd Marine Expeditionary Brigade (TF Tarawa)
Brigadier General Richard F. Natonskis, Commanding General[2]
1st BN, 2nd Marine Regiment[2]
3rd BN, 2nd Marine Regiment[2]
2nd BN, 8th Marine Regiment[2]
1st BN, 10th Marine Regiment (155T)[2]
15th Marine Expeditionary Unit (SOC)[2]
2nd BN, 1st Marine Regiment[2]
S Btry, 5-11 Marine Regiment (155T)[2]
24th Marine Expeditionary Unit[2]
2nd BN, 2nd Marine Regiment[2]
F Btry, 2-10 Marine Regiment (155T)[2]
1st (UK) Armoured Division[2]
Royal Scots Dragoon Guards (Armor)[2]
2nd Royal Tank Regiment (Armor)[2]
1st BN, Black Watch (Armoured Infantry)[2]
1st BN, Royal Regiment of Fusiliers (Armoured Infantry)[2]
3rd Regiment Royal Horse Artillery (155SP)[2]
1st BN, Royal Irish Regiment (Air Aslt)[2]
7th Parachute Regiment Royal Horse Artillery (105T)[2]
29 Commando Regiment Royal Artillery (105T)[2]
See main article: V Corps (United States). Lieutenant General William S. Wallace, Commanding General
1st Brigade
2nd BN, 7th Infantry Regiment (Mech)
3rd BN, 7th Infantry Regiment (Mech)
3rd BN, 69th Armor Regiment
1st BN, 41st Field Artillery Regiment (155SP)
2nd Brigade
3rd SQN, 7th Cavalry Regiment (Mech)
3rd BN, 15th Infantry Regiment (Mech)
1st BN, 64th Armor Regiment
4th BN, 64th Armor Regiment
1st BN, 9th Field Artillery Regiment (155SP)
3rd Brigade
1st BN, 15th Infantry Regiment (Mech)
1st BN, 30th Infantry Regiment (Mech)
2nd BN, 69th Armor Regiment
1st BN, 10th Field Artillery Regiment (155SP)
101st Airborne Division (Air Assault)
2nd Brigade
1st BN, 502nd Infantry Regiment (Air Assault)
2nd BN, 502nd Infantry Regiment (Air Assault)
3rd BN, 502nd Infantry Regiment (Air Assault)
2nd BN, 70th Armor Regiment – Detached from 1st Armored Division
1st BN, 320th Field Artillery Regiment (Air Aslt) (105T)
3rd Brigade
1st BN, 187th Infantry Regiment (Air Aslt)
2nd BN, 187th Infantry Regiment (Air Aslt)
3rd BN, 187th Infantry Regiment (Air Aslt)
3rd BN, 320th Field Artillery Regiment (Air Aslt) (105T)
326th Engineer Battalion (Air Aslt)
2nd Brigade
1st BN, 325th Infantry Regiment (Abn)
3rd BN, 325th Infantry Regiment (Abn)
1st BN, 41st Infantry Regiment (Mech) – Detached from 1st Armored Division
2nd BN, 319th Field Artillery Regiment (Abn) (105T)
1st Brigade, 101st Airborne Division
1st BN, 327th Infantry Regiment (Air Aslt)
3rd BN, 327th Infantry Regiment (Air Aslt)
2nd BN, 320th Field Artillery Regiment (Air Aslt) (105T)
4th Infantry Division (Mech) – Unable invade through Turkey in the north due to failed diplomacy, 4ID was forced to wait for vehicles to arrive in Kuwait, before sprinting north to Baghdad. 4ID was quick to discover all lead elements had exhausted mission essential resources and placed the invasion in serious jeopardy of stalling. Unwilling to give up the momentum, 4ID distributed their supplies between the divisions and continued the push north alone.
1st Brigade
1st BN, 8th Infantry Regiment (Mech) – Detached From 3rd Brigade
1st BN, 22nd Infantry Regiment (Mech)
1st BN, 44th Air Defense Artillery Regiment (United States)
1st BN, 66th Armor Regiment
3rd BN 66th Armor Regiment
4th BN, 42nd Field Artillery Regiment (155SP)
2nd Brigade
2nd BN, 8th Infantry Regiment (Mech)
1st BN, 67th Armor Regiment
3rd BN, 67th Armor Regiment
3rd BN, 16th Field Artillery Regiment (155SP)
3d Brigade
1st BN, 12th Infantry Regiment (Mech)
1st BN, 68th Armor Regiment
3rd BN, 29th Field Artillery Regiment (155SP)Corps Asset
265th Engineer Group
52nd Engineer Battalion (CBT HVY)
122nd Engineer Battalion (CORPS Wheeled)
864th Engineer Battalion (CBT HVY)
565th Engineer Battalion (PROV)
142nd Engineer Battalion (CBT HVY)
489th Engineer Battalion (CBT MECH)
878th Engineer Battalion (CBT HVY)
5th BN, 3rd Field Artillery Regiment (MLRS)
1st BN, 12th Field Artillery Regiment (MLRS)
3rd BN, 18th Field Artillery Regiment (155SP)
2nd BN, 18th Field Artillery Regiment (MLRS)
1st BN, 27th Field Artillery Regiment (MLRS)
2nd BN, 4th Field Artillery Regiment (MLRS)
211th Military Police Battalion
503rd Military Police Battalion
519th Military Police Battalion
709th Military Police Battalion
720th Military Police Battalion
205th Military Intelligence Brigade
15th Military Intelligence Battalion
165th Military Intelligence Battalion
223rd Military Intelligence Battalion
302nd Military Intelligence Battalion
325th Military Intelligence Battalion
519th Military Intelligence Battalion
44th Signal Battalion
51st Signal Battalion
See main article: Special Operations Command Central.
Combined Joint Special Operations Task Force-North (TF Viking)[3]
173rd Airborne Brigade – Conducted a parachute drop into northern Iraq on March 26, 2003
1st BN, 508th Infantry Regiment (Abn)
2nd BN, 503rd Infantry Regiment (Abn)
1st BN, 63rd Armor Regiment – (1st Infantry Division), Attached
D Btry, 319th Field Artillery Regiment (Abn) (105T)
2nd BN, 15th Field Artillery Regiment (105T) – (10th Mountain Division), attached
2nd BN, 14th Infantry Regiment – (10th Mountain Division), Attached minus Charlie Company
26th Marine Expeditionary Unit(SOC)
Combined Joint Special Operations Task Force-West (TF Dagger)
1st BN,124th Infantry Regiment – FLNG
Charlie Co,2nd BN,14th Infantry Regiment – (10th Mountain Division), Attached
Task Force 14[4]
B Sqdn, 22 Special Air Service Regiment
D Sqdn, 22 Special Air Service Regiment
Task Forces 7
M Sqdn, Special Boat Service
Task Forces 64
1 Sqdn, Special Air Service Regiment
Coy, 4th Bn, Royal Australian Regiment (later became the 2nd Commando Regiment)
Task Force 20
C Sqdn, 1st Special Forces Operational Detachment-Delta
D Sqdn, 1st Special Forces Operational Detachment-Delta
Gold Sqdn, Naval Special Warfare Development Group[5]
Naval Special Warfare Task Group - Central
SEAL Team 5[9]
SEAL Team 8
SEAL Team 10
Plt, SEAL Delivery Vehicle Team 1
Special Boat Team 20
See main article: Iraqi Armed Forces. Saddam Hussein was the supreme armed forces commander.[10]
See main article: Iraqi Ground Forces. Chief of Staff: Ibrahim Abd al-Sattar Muhammad Ahmed
See main article: Republican Guard (Iraq). Under the supervision of Qusay Hussein, commanded by Staff General Sayf al-Din Taha al-Rawi.
See main article: Special Republican Guard (Iraq). Under the supervision of Qusay Hussein, commanded by Major general Kheir-Allah Wahees Omar al-Nassiri. It serves as a Praetorian Guard which is located within Baghdad and is organized to defend the regime.