Modern American Army organisation, from 1958 Pentomic to the 2000+’s.

American Army

There are four sets of organization for the US army, Pentomic, ROAD, Division 86 and Army XXI. ROAD, Division 86 and Army XXI units practiced cross attachment, so Tank and Mechanized Companies may be fielded with companies from the opposite. Similarly the Brigades are very flexible, and can command from 2 to 5 battalions in these units. Prior to 1958 all World War Two organizations are in effect except that newer weapons are used.

American Pentomic Battle group 1958

• HQ Company 1HQ
• Scout Platoon 1 Jeep/MG, 1 M41
• Anti Aircraft Platoon 1 Truck, 1 12.7AAG
• Anti Tank Platoon 2 Jeep/106
• Engineer Platoon 1 Truck, 1 Engr, 1 FT
• 5 Infantry Companies each 5 Truck, 4 Rifle, 1 81M, 1 Jeep/106
• Tank Company 3 M48 (M47 in USA)
• Artillery Battery 2 105H, 2 Trucks

Note Note this concept was very short lived. A Cavalry Troop from the Pentomic Armored Cavalry Squadron could be added. The whole idea on Pentomic ORBATs was for small self-contained battle groups running around the nuclear cleared battlefield engaging in scattered disorganized battles in a post nuclear war.

American Pentomic Airborne Battle group 1958 (Note very short lived)

• HQ Company 1 HQ
• Scout Platoon 1 Jeep/MG
• Anti Aircraft Platoon 1 Jeep, 1 12.7AAG
• Anti Tank Platoon 2 90RR
• Engineer Platoon 1 Engr, 1 FT
• 5 Infantry Companies each 4 Rifle, 1 60M, 1 90RR
• Anti Tank Company 3 Jeep/106
• Mortar Battery 2 107M, 2 Trucks
• American Pentomic Field Artillery Battalion 1958
• 5 Batteries each
  • 1 FAO, 2 M52
  • Or
  • 1 FAO, 2 Trucks, 2 105H

Note Self-Propelled battalions are for Armored Divisions. They can have M52 to 1964.

American Pentomic Composite Artillery Battalion 1958

• 2 Batteries each 1 FAO, 2 M53, or 2 155H, 2 Truck
• 1 Battery each 1 FAO, 2 203H, 2 Truck
• 1 Battery each 1 FAO, 2 Honest John

Note Self-Propelled battalions are for Armored Divisions. They can have M53 to 1964.

American Pentomic Airborne Composite Artillery Battalion 1958

• 5 Batteries each 1 FAO, 2 Trucks, 2 105H
• 1 Battery each 1 FAO, 2 Honest John

Note Honest John is air lifted not air dropped.

American Pentomic Cavalry Squadron 1958

• HQ 1 HQ
• 3 Cavalry Troops each 2 Jeep/MG, 1 Scout, 1 M59, 1 M41, 1 M59/107M

Note 3 Squadrons under another Headquarters makes a Regiment.

American Pentomic Tank Battalion 1958

• HQ 1 HQ
• 1 Scout Platoon 2 Jeep/MG
• 1 Mortar Battery 1 M84
• 4 Companies each 3 M48

Note All tanks must be of the same type; M48, M47 or M103 and no more than 1 Battalion of M103 may be used. M47 and M103 were not used in Europe. The Pentomic Armored Division is the same as the combat command type armored division from the Second World War.

American Pentomic Mechanized Infantry Battalion 1958

• HQ 1 HQ
• 4 Infantry Companies each 5 M59, 4 Rifle, 1 Jeep/106, 1 81M
• 1 Scout Platoon 2 Jeep/MG
• 1 Mortar Battery 1 M84

American Pentomic Engineer Battalion 1958

• HQ 1 HQ
• 4 Engineer Companies each 4 M59, 3 Engr, 1 M47 Dozer
• 1 Bridge Company 2 Engr, 2 Bridge, 2 M59, 2 Trucks

American Pentomic Airborne Engineer Battalion 1958

• HQ 1 HQ
• 4 Engineer Companies each 3 Engr

American Pentomic Aviation Company 1958

• 1 General Support Flight 2 H13 Sioux Recon, 1 H19 Chicksaw, 1 L20
• 1 Direct Support Flight 1 L19 FAC, 3 H13 Sioux Recon

American Pentomic Armored Cavalry Regiment 1958 (Commands 3 Armored Cavalry Squadrons and 1 Aviation Company)

• HQ 1 HQ
• 1 Armored Engr Company 3 M59, 3 Engr, 1 M47 Dozer

American Pentomic Divisional Anti Aircraft Battalion 1958

• 3 Auto Weapons Btys each 3 M42

 

American ROAD Brigade Headquarters 1958 to 1982

• HQ 1 HQ
• 1 Engineer Company: 2 M113, 1 Engr, 1 Engr, 1 AVLB, 1 CEV

Note M577 replaced soft transport in the mid – 1960’s. Light infantry brigades delete the AVLB and CEV, replacing armored vehicles with jeeps and trucks.

American ROAD Mechanized Infantry Battalion 1958 to 1970

HQ 1 HQ

• 3 Infantry Companies each 3 M113, 3 Rifle, 1 M113/106, 1 M125
• 1 Scout Platoon 3 M113 ACAV
• 1 Mortar Battery 1 M106

American ROAD Mechanized Infantry Battalion 1971 to 1984

• HQ 1 HQ
• 3 Infantry Companies each 3 M113, 3 Rifle, 1 M901, 1 M125
• 1 Scout Platoon 3 M113 ACAV, 1 M901
• 1 Mortar Battery 1 M106

Note M150 was first used in 1973 and M901 in 1979. May not M113/106 with M150, there are no other restrictions.

American ROAD Tank Battalion 1958 to 1965

• HQ 1 HQ
• 1 Scout Platoon 2 Jeep/MG, 1 M41
• 1 Mortar Battery 1 M106
• 3 Companies each 3 M48

Note All tanks must be of the same type; M48, M47 or M103 and no more than 1 Battalion of M103 may be used. M48 was used in Vietnam

American ROAD Tank Battalion 1966 to 1980

• HQ 1 HQ
• 1 Scout Platoon 2 M113 ACAV
• 1 Mortar Battery 1 M106
• 3 Companies each 3 M60

Note Only one type of tank may be used; only 1 Battalion of M60A2 may be used. Dates are as follows:

• M48A3 to 1972; SE Asia.
• M60A1 at any time
• M60A2 from 1975
• M48A5 from 1976

One Battalion can have M551 Sheridan.

American ROAD Tank Battalion 1978 to 1985

HQ 1 HQ

• 1 Scout Platoon 2 M113 ACAV, 1 M901
• 1 Mortar Battery 1 M106
• 3 Companies each 3 M60

Note Only one type of tank may be used. Dates are as follows:

• M1 from 1983
• M60A1 at any time
• M60A3 from 1981
• M48A5 from 1976

One battalion can have M551 Sheridan.

American ROAD Field Artillery Battalion 1958 to 1985

3 Batteries each 1 FAO, 2 M52 or 2 M108 or 2 M109

Or

1 FAO, 2 Trucks, 2 105H or 2 155H

Or 1 FAO, 2 M53 or M110

Note Self-Propelled battalions are for Armored/Mechanized Divisions. They can have:

M52 to 1964,

M108 from 1962 to 1968.

M109 form 1964 onwards.

M548 is used with M108 and M109.

Towed battalions are for Light Infantry and Airborne Divisions. Airborne units have 105mm, and Light units have 3 105mm + 1 155mm until 1985. They can have:

105H to 1986

155H to 1985

M110 Battalions are Divisional heavy or Corps level, could also have M107and use as General support units.

American ROAD Divisional Anti Aircraft Battalion 1958 to 1975

2 Auto Weapons Btys each 3 M163 or M42

2 Missile Batteries each 3 M48 Chaparral

Note To 1970 would have 3 Auto Weapons batteries with M42.

American ROAD Divisional Anti Aircraft Battalion 1975 to 1985

2 Auto Weapons Btys each 3 M163

2 Missile Batteries each 3 M48 Chaparral

American ROAD Cavalry Squadron 1958 to 1975

HQ 1 HQ

3 Cavalry Troops each 1 M125, 1 M113, 1 90RR, 1 M551

3 Sections each 2 M113 ACAV, 2 Rifle

1 Tank Troop 3 M551

1 Air Cavalry Flight 2 OH58, 2 AH1, 1 UH1, 1 Rifle

1 Battery 1 FAO, 2 M109

Note AH1 appeared in 1969/70, prior to that use UH1 gunship. If M551 are used this is the only tank that may be used otherwise omit tank troop. M551 was first issued in 1969 prior to that use M47 in USA, M48 in Germany and Vietnam, M551 were withdrawn in 1976. M114 is used in place in M1113 ACAV prior to 1966.

American ROAD Airborne Cavalry Squadron 1958 to 1985

HQ 1 HQ

3 Cavalry Troops each 2 Jeep, 1 Jeep/106, 1 81M, 1 90RR

3 Sections each 2 Jeep, 2 Rifle

1 Tank Troop 3 Jeep/106

1 Air Cavalry Flight 2 OH58, 2 AH1, 1 UH1, 1 Rifle

1 Battery 1 FAO, 2 105H, 2 Trucks

Note AH1 appeared in 1969/70, prior to that use UH1

American ROAD Cavalry Squadron 1976 to 1985

HQ 1 HQ

3 Cavalry Troops each 1 M106, 1 M113, 1 Dragon, 1 M60

3 Sections each 1 M113 ACAV, 1 Rifle, 1 M901

1 Tank Troop 3 M60

1 Air Cavalry Flight 2 OH58, 2 AH1, 1 UH1, 1 Rifle

1 Battery 1 FAO, 2 M109

Note Tank types may not be mixed, except that if Cavalry Troops have M551, the Tank Troop must have M60.

American ROAD Armored Cavalry Regiment 1958 to 1985 (commands 3 Armored Cavalry Squadrons)

HQ 1 HQ

Air Cav Troop 1 AH1, 2 UH1, 1 OH58, 2 Rifle

American Division 86 Cavalry Squadron 1986 to 1997

HQ 1 HQ, 1 M113, 1 Engr

3 Cavalry Troops each 1 M106, 1 M1, 2 M3, 2 Rifle, 1 Javelin

1 Tank Troop 3 M1

1 Air Cavalry Flight 1 OH58, 2 AH64, 1 UH1

1 Battery 1 FAO, 2 M109A6

American ROAD


/Division 86 Light Infantry Battalion 1965 to 1997

HQ 1 HQ

3 Companies each 1 Dragon or 90RR, 3 Rifle

1 Platoon 2 Jeep/106 or 3 Jeep/Tow or HMMV/TOW (1988)

1 Battery 1 4.2M (120M in 1990), 1 Truck

Transport By either Helicopter or truck

Note 106 and 90RR can be used up to 1981, TOW & Dragon form 1975, they may be mixed, but TOW cannot be used with 106RR, and Dragon may not be used with 90RR. Para units are light but continued to use the jeep/TOW longer. In Vietnam, very often anti-tank equipment was stored and a fourth rifle company was formed from the surplus personnel.

American Armored Division 86 Cavalry Regiment 1985 to 1997 (commands 3 Armored Cavalry Squadrons)

HQ 1 HQ

Air Cav Troop 1 AH64, 2 UH60, 1 OH58, 2 Rifle

American Division 86 Armored Brigade Headquarters (May command 4 Battalions)

HQ 1 HQ

1 Engineer Company 3 M113, 3 Engr, 2 AVLB, 1 M728 CEV

1 Attack Helicopter Flight 1 OH58, 2 AH64

American Division 86 Armored Battalion 1986 to 1997

HQ 1 HQ

Scout Platoon 2 M3, 2 Rifle (or 2 HMMV/MG, 1 HMMV/GL)

Or 2 HMMV/MG, 1 Rifle. 1 HMMV /TOW

Mortar Platoon 2 M125

4 Companies each 3 M1

Note M60 and M48 units use M113. A HumVee Scout platoon was used in the Gulf War.

American Division 86 Mechanised Battalion 1986 to 1997

HQ 1 HQ

Scout Platoon 2 M3, 2 Rifle (or 1 HMMV/MG, 1 Rifle, 1 HMMV /GL)

Mortar Platoon 2 M125

4 Infantry Companies each 3 M3, 3 Rifle

1 Anti Tank Company 3 M901

Note Units have M2 /M3 or M113. The HumVee Scout platoon was used in the Gulf War

American Division 86 Cavalry Squadron 1986 to 1997

HQ 1 HQ, 2 M106, 1 M113, 1 Engr

3 Troops 2 M1, 2 M3, 2 Rifle

1 Company 3 M1

1 Attack Flight 1 OH58, 2 AH64

1 Battery

1 FAO, 2 M109A1

American Division 86 Field Artillery Battalion 1986 to 1997

3 Batteries each 1 FAO, 2 M109A1

American Division 86 Divisional Anti Aircraft Battalion 1986 to 1995

2 Auto Weapons Btys each 3 M163

2 Missile Batteries each 3 M48 Chaparral

American Division 86 Heavy Artillery Battalion 1986 to 1997

2 Batteries each 1 FAO, 2 M110

2 Batteries each 1 FAO, 2 MRLS

American Division 86 Helicopter Battalion 1986 to 1997

3 Attack Companies each 2 AH-64

1 Scout Company 3 OH58

Note OH58s may be attached to AH company. Individual companies may be used.

American Division 86 Tow Light Anti Tank (TLAT) Battalion 1981 to 1993

3 Anti Tank Companies each 4 Jeep/TOW

Note: After 1988 HMMV/TOW replaces the jeeps. TLAT units were formed in the 1981 to provide additional wartime anti tank support to light divisions which lacked the anti-tank punch of the heavy divisions. 4 units were stood up from National Guard infantry battalions: 1/249 (Oregon ARNG), 2/180 (Oklahoma ARNG), 1/122 (Georgia ARNG) and 2/128 (Wisconsin). 10^th(Mountain) Infantry Division, 7^th (Light) Infantry Division, 101^st (Air Assault) Division and 82^nd (Airborne) Division each were to receive one of these battalions as round out units during war mobilization. 1/122 almost went to Desert Shield and Gulf War 1. In fact 1/122 even trained with 82^nd Airborne but stayed when the division commander decided against them. All units were disbanded or re-roled as infantry during the “Great Scale Down” in 1993. An excellent tactical idea that never got a chance to be implemented, I am a proponent of large numbers of light self propelled ATGMs running around the battlefield under a central control but this concept has now been largely replaced by helicopters.

American SBCT Brigade Headquarters 2003+ (Commands 3 Infantry Battalions, 1 Recon Surveillance Squadron, 1 Artillery Battalion, 1 Armored Battalion, and 1 Aviation Battalion)

HQ 1 HQ

Anti Tank Company

3 LAV/AT

Engineer Company

3 Engr, 3 LAV/Eng

Note Formerly known as IBCT (Interim Brigade Combat Team) they are now SBCT (Stryker Brigade Combat Team) after the name of the LAV mounting a 105mm anti tank gun. Once complete there will be 5 SBCTs designed to be deployed anywhere in the world in 96 hours complete and ready for war. It is fair to say that units will be the medium weight punch of the US Army.

American SBCT Infantry Battalion 2003+

HQ 1 HQ

3 Companies 3 LAV/MG, 1 LAV/GL, 3 Rifle, 1 Javelin, 1 60M

Support Company

1 LAV/M, 1 HQ, 1 LAV

Anti Tank Company 3 LAV/AT

American SBCT Reconnaissance, Surveillance and Target Acquisition Squadron 2003+

HQ 1 HQ

3 Troops

1 LAV/AT, 1 LAV/105, 2 LAV/R, 2 Scout, 1 Javelin, 1 LAV/M

Support Troop

4 LAV/R

American SBCT Artillery Battalion 2003+

3 Batteries

1 FAO, 2 155H, 2 Truck

Note Final ORBAT will include the new lightweight 155mm M777.

American SBCT Armored Battalion 2003+

HQ 1 HQ

4 Companies

3 LAV/105

Note Centauro was tested for position as well.

American SBCT Aviation Battalion 2003+

2 Attack Companies

2 RAH1

2 Utility Companies 2 UH60

American Army XXI Cavalry Squadron (Light) 2001+

HQ 1 HQ, 1 HMMV/AD, 1 HMMV/TOW, 1 HMMV, 1 Engr

3 Troops each 2 HMMV/TOW, 1 HMMV/GL, 1 HMMV/MG, 1 HMMV, 1 120M

Air Troop 3 OH58D

Anti Tank Company 3 HMMV/TOW

Artillery Battery 1 FAO, 2 155H, 2 Truck

Note This is a tentative ORBAT most of the equipment for this type of unit is still being designed and tested. The HumVees are standing in that equipment.

American Army XXI Air Cavalry Squadron 2001+

4 Air Cavalry Troops each 2 OH58D

Air Transport Troop 3 UH60

American Army XXI Cavalry Regiment (Light) 2001+ (Commands 1 Air Cavalry Squadron and 3 Cavalry Squadron (Light))

HQ 1 HQ

Chemical Company 1 HMMV, 2 M93 Fox

Air Defense Battery 3 HMMV/AD

Note This is a tentative ORBAT most of the equipment for this type of unit is still being designed and tested. The HumVees are standing in that equipment. 2^nd Dragoons (2 ACR) of 18^th Airborne Corps is the only light regiment. It is currently held that 2^nd Dragoons will become medium as its final ORBAT and remain with 18^th Airborne Corps.

American Army XXI Armored Cavalry Squadron (Medium) 2001+

HQ 1 HQ, 1 LAV/AD, 1 LAV/TOW, 1 LAV/APC, 1 Engr

3 Troops 2 LAV/TOW, 1 LAV/GL, 1 LAV/MG, 2 LAV/120

Air Troop 3 OH58D

Anti Tank Company 3 LAV/TOW

Note This is a notional ORBAT most of the equipment for this type of unit is still being designed and tested. The LAV usage is suspected. US Army is not currently committed to medium force structure only a light and heavy force structure, so this is provided as a summation of US Army thought on this type of force. This is a good compromise between the political consideration of light deployable forces and army desire for a heavy punch in theatre. Note the elimination of the 155mm artillery and the increase in 120mm mortars; this is the first time in US Army history where so much combat power reliance has been placed on a mortar.

American Army XXI Armored Cavalry Regiment (Medium) 2001+ (Commands 1 Air Cavalry Squadron and 3 Armored Cavalry Squadron (Medium))

HQ 1 HQ

Chemical Company 1 LAV/APC, 2 M93 Fox

Air Defense Battery 3 LAV/AD

Note This is a notional ORBAT most of the equipment for this type of unit is still being designed and tested. The LAV usage is suspected. US Army is not currently committed to medium force structure only a light and heavy force structure, so this is provided as a summation of US Army thought on this type of force. This is a good compromise between the political consideration of light deployable forces and army desire for a heavy punch in theatre.

American ArmyXXI Armored Cavalry (Heavy) Squadron 2001+

HQ 1 HQ, 1 M113, 1 Engr

3 Troops 2 M1, 2 M3, 2 Rifle, 1 M106

Tank Company 3 M1A2

Air Troop 3 OH58D

Artillery Battery 1 FAO, 2 M109A6

American Army XXI Armored Cavalry Regiment (Heavy) 2001+ (Commands 1 Air Cavalry Squadron and 3 Armored Cavalry Squadron (Heavy))

HQ 1 HQ

Chemical Company 1 M3, 2 M93 Fox

Air Defense Battery 3 HMMV/AD

American Army XXI Heavy Division Armoured Cavalry Squadron 2001+

HQ 1 HQ, 1 AVLB, 1 M113, 1 Engr

3 Troops 2 M1, 2 M3, 2 Rifle, 1 M106

Air Troop 3 OH58D

American Army XXI Brigade Reconnaissance Troop (Heavy) 2001+

HQ 1 HQ

3 Platoons 1 M1, 1 M3, 1 Scout

Note Troops from the 1^st, 4^th, 9^th, and 10^th cavalry regiments fulfill this role thus these regiments continue exist in the ORBAT in a reduced US Army.

American Army XXI Brigade Reconnaissance Troop (Light) 2001+

HQ 1 HQ, 1 HMMV/120

3 Platoons 1 HMMV/TOW, 1 HMMV/GL, 1 HMMV/MG, 1 Scout

American Army


XXI Heavy Division Tank Battalion 2001+

HQ 1 HQ, 1 M106/120

4 Companies each 3 M1A2

Note Scouts may deploy in HMMV/GL as an alternate.

American Army


XXI Heavy Division Mechanized Infantry Battalion 2001+

HQ 1 M2, 1 HQ

HQ Company 1 M106/120, 1 Scout, 1 M3, 1 Stinger, 1 HMMV

4 Companies each 3 Rifle, 3 M2

Anti Tank Company

4 M901

Note Scouts may deploy in HMMV/GL as an alternate.

American ArmyXXI Light Division Light Infantry Battalion 2001+

HQ 1 HQ

HQ Company

1 HMMV/MG, 1 81M, 1 Scout, 1 HMMV/GL, 1 Stinger, 2 HMMV, 2 HMMV/TOW

3 Companies each

3 Rifle, 1 60M

American ArmyXXI Light Division Air Assault Infantry Battalion 2001+

HQ 1 HQ

HQ Company

1 HMMV/MG, 1 81M, 1 Scout, 1 HMMV/GL, 1 Stinger, 2 HMMV

3 Companies each

3 Rifle, 1 Javelin, 1 60M, 1 MG

Anti Tank Company

5 HMMV/TOW

Note Standard transport is Medium Logistics Vehicle from brigade and division. In air assault mode this unit will have little or no HMMVs, thus TOW will be dismounted (Javelin may be used as substitute).

American Army


XXI Light Division Airborne Infantry Battalion 2001+

HQ 1 HQ

HQ Company

1 HMMV/MG, 1 81M, 1 Scout, 1 HMMV/GL, 1 Stinger, 2 HMMV, 2 HMMV/TOW

3 Companies each

3 Rifle, 1 Javelin, 1 60M

Anti Tank Company

5 HMMV/TOW

Note Standard transport is Medium Logistics Vehicle from brigade and division. In airborne mode this unit will have no HMMV, thus TOW will be dismounted (Javelin may be used as substitute).

American Army


XXI Heavy Division Combat Engineer Battalion 2001+

HQ 1 HQ

3 Companies each

3 Engr, 3 M113

AO Platoon

1 AVLB, 1 Bridge, 1 Dozer, 1 MLG

American Army


XXI Light Division Combat Engineer Battalion 2001+

HQ 1 HQ

3 Companies each

3 Engr, 3 HMMV

AO Platoon

1 Truck, 1 Bridge, 1 Dozer, 1 MLG

American ArmyXXI Light Division Air Defense Artillery Battalion 2001+

4 Batteries each 3 HMMV/AD

American ArmyXXI Heavy Division Air Defense Artillery Battalion 2001+

4 Batteries each 2 M3/AD, 1 HMMV/AD

American ArmyXXI Corps Air Defense Artillery Battalion 2001+

3 Batteries each 1 Patriot, 2 Truck, 1 AD Rad

American ArmyXXI Light Division Artillery Battalion 2001+

3 Batteries each 1 FAO,2 155H, 2 Truck

Note A new light 155mm howitzer is about to be fielded; it is air mobile unlike the current weapon represented here.

American ArmyXXI Heavy Division Artillery Battalion 2001+

3 Batteries each 1 FAO, 2 M109A6

American ArmyXXI Heavy Division MRLS Artillery Battalion 2001+

3 Batteries each 1 FAO, 2 MRLS

Note There are number of towed 155mm battalions available to a Corps as well.

American ArmyXXI Support Aviation Battalion 2001+

3 Lift Companies each 3 UH60 or CH47

American ArmyXXI Attack Helicopter Battalion 2001+

3 Attack Companies each 2 AH-64

American ArmyXXI Attack Helicopter Regiment (Light) 2001+ (Commands 2 attack helicopter battalions)

HQ 1 HQ

American ArmyXXI Attack Helicopter Regiment (Heavy) 2001+ (Commands 3 attack helicopter battalions)

HQ 1 HQ

American Army XXI Heavy Division Aviation Brigade 2001+ (Commands 2 Attack Helicopter battalions, 1 Armoured Cavalry Squadron, 1 Support Aviation Battalion)

HQ 1 HQ

Note Heavy division aviation brigades command 2 attack helicopter battalions, 1 support aviation battalion and 1 armored cavalry squadron.

American Army XXI Air Assault Division Air Assault Aviation Brigade 2001+ (Commands 4 Support Aviation Battalions; 3 UH60 and 1 CH47)

HQ 1 HQ

American Army XXI Light/Air Assault Division Aviation Brigade 2001+ (Commands 3 Attack Helicopter battalions, 1 Cavalry Squadron (Light), 1 Support Aviation Battalion)

HQ 1 HQ

Note Light division aviation brigades command 3 attack helicopter battalions, 1 support aviation battalion and 1 armored cavalry squadron.

American ArmyXXI Light Division Artillery Brigade Headquarters 2001+ (Commands 3 towed 155mm artillery battalions)

HQ 1 HQ

American ArmyXXI Heavy Division Artillery Brigade Headquarters 2001+ (Commands 3 M109A6artillery battalions and 1 MRLS battalion)

HQ 1 HQ

American ArmyXXI Brigade Headquarters (Light)2001+

HQ 1 HQ

American Army XXI Brigade Headquarters (Heavy) 2001+

HQ 1 HQ

Note Armored brigades command 1 brigade reconnaissance troop, 2 tank, 1 mechanized infantry and 1 combat engineer battalions. Mechanized brigades command 1 brigade reconnaissance troop, 1 tank, 2 mechanized infantry, and 1 combat engineer battalions. Artillery brigades commands 3 field artillery battalions and 1 target acquisition battalion. All brigades have a forward support battalion (FSB) not represented in game terms. FSB provide dedicated medical, logistics and maintenance support to the brigade they are part of.

American ArmyXXI Divisional Headquarters (Light) 2001+

HQ 1 HQ

American ArmyXXI Divisional Headquarters (Heavy)

HQ 1 HQ

American Marine Infantry Battalion 1986 to 1997

HQ 1 HQ

3 Companies each 3 Rifle, 1 60M

Weapons Company 1 81M, 1 GL, 6 Dragon

Transport By either Helicopter or AAV7 or LAV

American Marine Combined Arms Regiment Headquarters 1986 to 1997 (commands 3 infantry battalions and 1 tank battalion)

HQ 1 HQ

Recce Company

3 LAV-R, 1 LAV-AT

Anti Tank Platoon 6 HMMV/TOW

American Marine Regiment Headquarters 1986 to 1997 (commands 3 USMC infantry battalions)

HQ 1 HQ

Recce Company

3 LAV-R, 1 LAV-AT

Anti Tank Platoon 6 HMMV/TOW

American Marine Infantry Battalion 1997 to 2001

HQ 1 HQ

3 Companies each 3 Rifle, 1 60M

Weapons Company 2 81M, 1 GL, 6 Dragon

Transport By either Helicopter or AAV7 or LAV

American Marine Artillery Battalion 1986 to 2001

3 Batteries each 1 FAO, 2 155H, 2 Truck

American Marine Recon Battalion 1986 to 2001

HQ 1 HQ

3 Companies each 3 Scout, 1 60M, 4 HMMV

American Marine Tank Battalion 1986 to 1997

HQ 1 HQ

4 Tank Companies each 3 M60A3

Anti Tank Company 6 HMMV/TOW

American Marine Tank Battalion 1998 to 2001

HQ 1 HQ

4 Tank Companies each 3 M1

Anti Tank Company 6 HMMV/TOW

American Marine Armored Assault Battalion 1986 to 2001

HQ 1 HQ

4 Companies each 10 AAV7

American Marine Artillery Battalion 1986 to 2001

3 Batteries each 1 FAO, 2 155H, 2 Truck

American Marine Recon Battalion 1986 to 2001

HQ 1 HQ

3 Companies each 3 Scout, 1 60M, 4 HMMV

American Marine Tank Battalion 1986 to 2001

HQ 1 HQ

4 Tank Companies each 3 M1

Anti Tank Company 6 HMMV/TOW

American Marine Light Armored Vehicle Battalion 1986 to 2001

HQ 1 HQ, 4 LAV/TOW

4 Companies each 3 LAV/25

American Marine Combat Engineer Battalion 1986 to 2001

HQ 1 HQ

3 Companies each 3 Engr, 3 FT, 4 HMMV

Support Company 1 HMMV, 2 Dump Truck, 2 Bulldozer, 3 Bridge, 3 Truck

American Marine Anti Aircraft Regiment 1970 to 1986

1 Company

5 Redeye, 5 Jeep

1 Company 2 Hawk, 2 Truck

American Marine Anti Aircraft Battalion 1986 to 2001

3 Companies each 1 LAV/25, 2LAV/AD

American Marine Regiment Headquarters 1998 to 2001 (commands 3 USMC infantry battalions)

HQ 1 HQ

Anti Tank Company 6 HMMV/TOW

Special Forces Group

HQ 1 HQ

Mortar Platoon 1 81M

4 Companies each 8 SF Dets (all FAO/FAC capable)

American Ranger Regiment Headquarters

HQ

1 HQ

Recon Company 3 Scout, 2 HMMV/MG, 1 HMMV/TOW, 1 HMMV/GL

American Ranger Battalion

HQ 1 HQ

3 Companies each

3 Rgr, 1 Javelin or 90RR, 1 60M, 5 HMMV

Engineer Company (OpCon) 3 Engr, 3 HMMV

Note Engineers are operationally controlled by the ranger unit but not part of the unit. In Vietnam Ranger units, operated as long range dismounted reconnaissance delete all support weapons and do not use in greater than company strength.

Large Units


:

Pentomic Infantry Division – 5 Pentomic Infantry Battle groups, 1 Pentomic Artillery Brigade (3 Field Artillery Battalions, 1 Composite Artillery Battalion), 1 Pentomic Anti-Aircraft Battalion (attached), 1 Pentomic Engineer Battalion, 1 Pentomic Armored Cavalry Squadron, 1 Pentomic Aviation Company

Pentomic Armored Division – 3 Combat Command Headquarters, 4 Pentomic Armored Battalions, 4 Pentomic Mechanized Infantry Battalions, 1 Pentomic Mechanized Artillery Brigade (3 Field Artillery Battalions, 1 Composite Artillery Battalion), 1 Pentomic Anti-Aircraft Battalion (attached), 1 Pentomic Engineer Battalion, 1 Pentomic Armored Cavalry Squadron, 1 Pentomic Aviation Company

Pentomic Airborne Division – 5 Pentomic Airborne Infantry Battle groups, 1 Pentomic Airborne Composite Artillery Battalion, 1 Pentomic Anti-Aircraft Battalion (attached only in ground role), 1 Pentomic Engineer Battalion, 1 Pentomic Armored Cavalry Squadron (only in ground role)

ROAD/Division 86 Armored Division – 3 Brigade Headquarters, 6 Armored Battalions, 5 Mechanized Infantry Battalions, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

ROAD/Division 86 Mechanized Infantry Division – 3 Brigade Headquarters, 5 Armored Battalions, 6 Mechanized Infantry Battalions, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

ROAD/Division 86 Light Infantry Division – 3 Brigade Headquarters, 2 Armored Battalions, 9 Infantry Battalions, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

ROAD/Division 86 Airborne Division – 3 Brigade Headquarters, 1 Armored Battalion, 9 Infantry Battalions, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

ROAD/Division 86 Air Mobile Division – 3 Brigade Headquarters, 9 Infantry Battalions, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

ROAD/Division 86 Mountain Division – 3 Brigade Headquarters, 2 Armored Battalions, 9 Infantry Battalions, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

Marine Division – 3 Marine Regiments, 1 Armored Battalion, 1 Light Armored Vehicle Battalion, 1 Amphibious Assault Vehicle Battalion, 1 Artillery Regiment, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Helicopter Battalion, 1 Attack Helicopter Battalion

Airborne Division XXI – 3 Airborne Brigades, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Aviation Brigade

Air Assault Division XXI – 3 Air Assault Brigades, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Cavalry Squadron, 1 Air Assault Aviation Brigade (3 UH60 Battalions, 1 CH47 Battalion), 1 Aviation Brigade (3 AH64 Battalions, 1 UH60 Battalion)

Armored Division XXI – 3 Armored Brigades, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Aviation Brigade

Mechanized Division XXI – 3 Mechanized Infantry Brigades, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Armored Cavalry Squadron, 1 Aviation Brigade

Light Division XXI – 3 Light Infantry Brigades, 1 Artillery Brigade, 1 Anti-Aircraft Battalion, 1 Engineer Battalion, 1 Armored Cavalry Squadron, 1 Aviation Brigade