U.S. Army Combat Arms Regimental System

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Lua error in package.lua at line 80: module 'strict' not found. The Combat Arms Regimental System (CARS), was the method of assigning unit designations to units of the five combat arms (Infantry, Field Artillery, Armor, Cavalry, and Air Defense Artillery) of the United States Army from 1957 to 1981. CARS was superseded by the U.S. Army Regimental System (USARS) in 1981.

History

Before the adoption of CARS, there was no satisfactory means of maintaining the active life of the combat arms organizations. Whenever the nation entered periods of military retrenchment, units were invariably broken up, reorganized, consolidated, or disbanded. During periods of mobilization, large numbers of new units were created. Changes in weapons and techniques of warfare produced new types of units to replace the old ones. As a result, soldiers frequently served in organizations with little or no history, while units with long combat records remained inactive.

In the late 1950s requirements for maneuverable and flexible major tactical organizations demanded highly mobile divisions with greatly increased firepower. For this purpose the regiment was deemed too large and unwieldy and had to be broken up into smaller organizations. (Most artillery and armored regiments had already been broken up for flexibility and maneuverability during World War II.)

When the U.S. Army division was reorganized under the Pentomic structure in 1957, the traditional regimental organization was eliminated, raising questions as to what the new units were to be called, how they were to be numbered, and what their relationship to former organizations was to be.

On 24 January 1957 the Secretary of the Army approved the CARS concept, as devised by the Deputy Chief of Staff for Personnel, which was designed to provide a flexible regimental structure that would permit perpetuation of unit history and tradition in the new tactical organization of divisions, without restricting the organizational trends of the future.

Units that participated in CARS

  • There were 61 Regular Army infantry regiments and 18 Army Reserve infantry regiments, plus the 1st Special Forces, in the Combat Arms Regimental System. (See Appendix A for listing.)
  • There were 30 Regular Army armor/cavalry regiments in the Combat Arms Regimental System. The only Regular Army combat units not organized under CARS were the 2d, 3d, 6th, 11th, and 14th Armored Cavalry Regiments. (See Appendix A for listing.)
  • There were 82 Regular Army artillery regiments in the Combat Arms Regimental System – 58 field artillery regiments and 24 air defense artillery regiments. (See Appendix A for listing.)
  • Except for the 18 Army Reserve infantry regiments, those regiments organized under CARS had elements in both the Regular Army and the Army Reserve. In the Army National Guard, each state has its own regiments. The number of CARS regiments varied as troop allotments change. The 1st Special Forces has elements in all three components – Regular Army, Army Reserve and Army National Guard.

The criteria for the majority of the regiments selected were two factors: age (one point for each year since original organization) and honors (two points for each campaign and American decoration). Those regiments with the most points were selected for inclusion in the system.

CARS implementation phases

  • Phase I: Reorganization of Regular Army regiments (1957)
  • Phase II: Reorganization of Army Reserve regiments (1959)
  • Phase III: Reorganization of Army National Guard regiments (1959)
  • Phase IV: Mobilization planning (1957–present)
  • Phase V: Organization of regimental headquarters (subsequently suspended indefinitely)

Organization

Each company, battery or troop in the regiment (as originally organized) was reorganized as the headquarters and headquarters element of a new battle group, battalion, or squadron in the new regiment. The new battle group, battalion, or squadron's organic elements (lettered elements, such as "Company A") were constituted and activated as new units. Each of the old companies, batteries, or troops of the former regiment also had the capability of becoming a separate company, battery, or troop in the new regiment. The regimental headquarters was transferred to Department of the Army control. (For detailed charts of typical regiments reorganized under CARS, see Appendix B.)

The lowest numbered or lettered active element of the regiment normally has custody of the regimental properties. If, however, the lowest numbered or lettered active element is unable to care for the properties, they may be transferred to the next lowest numbered or lettered active element. If a numbered or lettered element of the regiment is activated lower than the one having custody of the regimental properties, the properties will not necessarily be transferred.

Difference between a brigade and a regiment

In a regiment not organized under CARS, there is a fixed number of organic elements organized into battalions or squadrons. For example, the infantry regiment of World War II contained Companies A through M (minus J - not used) divided into three battalions (of four companies each), plus supporting elements such as the service company.

A brigade, on the other hand, is a flexible organization; it has no permanent elements. A brigade may have several different kinds of units assigned to it, such as: 3 light infantry battalions or 2 mechanized infantry and 1 armor battalion or 1 light, 1 mechanized and 1 armor battalion; plus support units. The usual number of maneuver battalions was 3; however, this was a guideline not a rule (ex: the 173rd Airborne Brigade in Vietnam had 4 airborne infantry battalions).

In tactical structure, therefore, it is very similar to the Regimental Combat Team of World War II and Korean War. Its maneuver (infantry and armor) elements were not required to be from the same regiment. Since they were flexible, except for the headquarters and headquarters company, no two brigades need be alike, whereas all regiments were fixed with organic elements provided for under basic tables of organization and equipment.

Battle honors

Each battalion or squadron of a CARS regiment has a replica of the regimental colors with the number of the battalion or squadron in the upper fly. The streamers attached to the colors were those for the regiment, as determined when the regiment was reorganized under CARS, plus those subsequently earned by the battalion or squadron.

Those campaigns and decorations actually earned by the battalion or squadron were shown on the streamers by earned honor devices. Regimental honors were listed on the battalion or squadron Lineage and Honors Certificates, with the earned honors being marked by asterisks.

Separate batteries, troops, and companies of CARS regiments display only those honors they actually earned, not the regimental ones. Campaign participation credit for these guidon-bearing units are displayed by silver bands and decorations streamers. (See ARs 672-5-1, 840-10 and 870-5 for further details.) Personnel wear the distinctive insignia for their regiment and the shoulder sleeve insignia of their division or other tactical organization to which they were assigned. (See AR 670-5 for further details.) The Adjutant General controls the designations of elements to be activated and coordinates his selections with the Center of Military History.

Regiments organized under Combat Arms Regimental System

Armor

Air Defense Artillery

Cavalry

Field Artillery

  • 1st Field Artillery
  • 2nd Field Artillery
  • 3rd Field Artillery
  • 4th Field Artillery
  • 5th Field Artillery
  • 6th Field Artillery
  • 7th Field Artillery
  • 8th Field Artillery
  • 9th Field Artillery
  • 10th Field Artillery
  • 11th Field Artillery
  • 12th Field Artillery
  • 13th Field Artillery
  • 14th Field Artillery
  • 15th Field Artillery
  • 16th Field Artillery
  • 17th Field Artillery
  • 18th Field Artillery
  • 19th Field Artillery
  • 20th Field Artillery
  • 21st Field Artillery
  • 22d Field Artillery
  • 25th Field Artillery
  • 27th Field Artillery
  • 29th Field Artillery
  • 30th Field Artillery
  • 31st Field Artillery
  • 32nd Field Artillery
  • 33rd Field Artillery
  • 34th Field Artillery
  • 35th Field Artillery
  • 36th Field Artillery
  • 37th Field Artillery
  • 38th Field Artillery
  • 39th Field Artillery
  • 40th Field Artillery
  • 41st Field Artillery
  • 42nd Field Artillery
  • 73nd[clarification needed] Field Artillery
  • 75th Field Artillery
  • 76th Field Artillery
  • 77th Field Artillery
  • 78th Field Artillery
  • 79th Field Artillery
  • 80th Field Artillery
  • 81st Field Artillery
  • 82d Field Artillery
  • 83d Field Artillery
  • 84th Field Artillery
  • 92d Field Artillery
  • 94th Field Artillery
  • 319th Field Artillery
  • 103rd Field Artillery
  • 201st Field Artillery
  • 320th Field Artillery
  • 321st Field Artillery
  • 333d Field Artillery
  • 377th Field Artillery

Infantry

Regular Army regiments

Army Reserve regiments

Special Forces Regiment

Note: Army National Guard regiments not included

Illustrations of organization under CARS

Chart 1 – Typical Infantry rgt under CARS

CARS ONE.png

Chart 2 – Typical Armor/Cavalry rgt under CARS

CARS TWO.png

Chart 3 – Typical Field Artillery rgt under CARS

CARS THREE.png

Chart 4 – Typical AD Artillery rgt under CARS

CARS FOUR.png

References

Notes
Bibliography
  • Department of the Army Regulations
    • 672-5-1. Military Awards. 1974-06-03
    • 840-10. Flags and Guidons: Description and use of flags, guidons, tabards and automobile plates. 1962-08-23.
    • 870-5 Historical Activities: Military history – responsibilities, policies and procedures. 1977-01-22.
    • 870-20 Historical Activities: Historical properties and museums, 1976-09-28
    • _____. Circular 220-1. October 1960.
    • _____. Pamphlet 220-1. June 1957.
  • "America’s Pride: Famous Old Regiments to Get New Life," The Army Reservist, III (October 1957), 10-11.
  • "Army Studies Ways to Keep Famed Regiments on Roster," Army Times (28 April 1956), 7.
  • Atwood, Thomas W. "A Hard Look at CARS," Armor, LXXII (July–August 1963), 19-22.
  • Booth, Thomas W. "Combat Arms Regimental System," Army Information Digest, XII (August 1957) 24-31.
  • Bourjaily, Monte Jr. "Battle Honor ‘Lies’ ", Army Times (10 March 1962), 13.
  • _____. "Colorful Names Would Identify Regiments," Army Times (2 August 1958), 9.
  • _____. "The Combat Regiments," Army Times (16 July 1960), 15.
  • _____. "Is Regimental Plan a Paper Exercise?" Army Times (23 March 1957).
  • _____. "The Question of CARS," Army, XI (July 1961), 23-27.
  • _____. "Regimental Plan Can Live or Die," Army Times (16 February 1957).
  • _____. "Unit Homes in ’57?" Army Times (29 December 1956), 1, 35.
  • "CARS Confusion," editorial, Army Times (25 July 1959), 10+.
  • Corbett, W.H. "New Life for Old Regiments," National Guardsman, XII (April 1958), 8, 9; (May 1958), 4, 5.
  • Danysh, Romana. "What’s the History of Your Unit?" Army Digest, XXII (December 1967), 12-15.
  • Dupuy, R. Ernest. "Our Regiments will Live Forever," Army-Navy-Air Force Register, LXXVIII (September 1957), 3.
  • Eliot, George Fielding. "Army’s Future Tightly Linked to ‘Future of the Regiment,’ " Army Times (June 1955).
  • "Future of the Regiment," Army Times (4 December 1954); (11 December 1954).
  • Gavin, James M. "The Traditional Regiments will Live On," Army Combat Forces Journal, V (May 1955), 20-21.
  • Harrison, O.C. "Doubts About the Regimental System," Army, VII (July 1957), 62+.
  • _____. "The Combat Arms Regimental System," Armor, LXVI (November–December 1957), 18-21.
  • "Historic Regimental Designations to be Retained by the Army," Army Navy Air Force Register, LXXVII, 1.
  • Jones, F. P. "The Cost of Going Regimental," Army, XVII (May 1967), 47-49.
  • Keliher, John G. "CARS is OK. It Can Do the Job," Army, XI (May 1961), 70-71.
  • Kennedy, William V. "Continuity Through the Regiment," National Guardsman, XIII (February 1959), 2, 3, 31.
  • Lamison, K.R. and John Wike. "Combat Arms Regimental System," Army Information Digest, XIX (September 1964), 16-24.
  • Mahon, John K. and Romana Danysh. Infantry. ARMY LINEAGE SERIES. Washington: Government Printing Office, 1972. Pages 87–100.
  • McMahon, Walter L. "CARS ’75; Permanent Headquarters for the Combat Arms Regimental System." US Army War College Research Paper, 31 October 1974.
  • Palmer, Bruce Jr. "Let’s Keep the Regiment," Army Combat Forces Journal, V (May 1955), 22-23.
  • "Reserves Brought into CARS," Army Times (4 April 1959).
  • Schmieier, Elmer. "Long Live the Regiment," Army, VII (April 1957), 25-28.
  • Short, James Harvey. "Young Soldiers Fade Away." Student essay, US Army War College, 13 January 1967.
  • Sinnreich, Richard H. and George K. Osborn. "Revive the Regiment, Rotate, and Reorganize," Army, XXV (May 1975), 12-14.
  • Stubbs, Mary Lee and Stanley Russell Connor. Armor-Cavalry. ARMY LINEAGE SERIES. Washington: Government Printing Office, 1969. Pages 81–83.
  • Tallat-Kelpsa, Algis J. "A Regiment as Home for Career Soldiers," Army, XXI (January 1971), 51-52.
  • Wike, John W. "Our Regimental Heritage," Army Information Digest, XIX (February 1964), 50-56.
  • Organizational History Branch, United States Army Center of Military History
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