Combat Arms Regimental System

Combat Arms Regimental System
Unit name	Combat Arms Regimental System
Dates	1957–1981
Country	United States
Branch	United States Army
Role	Regimental organization and lineage management

Combat Arms Regimental System

The Combat Arms Regimental System (CARS) was a United States Army organizational framework established in 1957 to preserve regimental identities while adapting to post‑World War II force structures and Cold War requirements. CARS sought to link historic American Civil War and World War II regiments with modular battalions and companies serving in disparate formations from Korean War era units through Vietnam War deployments and NATO commitments. It acted as a bridge between traditional regimental esprit de corps associated with units like the 101st Airborne Division, 1st Cavalry Division, and 82nd Airborne Division and the Army’s evolving needs driven by institutions such as the National Security Act of 1947 and doctrines developed at Fort Leavenworth and United States Army War College.

Origins and Rationale

CARS originated amid pressures from postwar demobilization, the onset of the Cold War, and the perceived need for more flexible force structures after experiences in World War II and the Korean War. Proponents, including officials at the Department of the Army and leaders influenced by studies at Rand Corporation and Office of the Secretary of Defense, argued that preserving regimental lineage would support morale for soldiers serving in scattered battalions assigned to formations like United States Army Europe and United States Army Pacific. The concept reacted to reforms such as the Pentomic reorganization and critiques from figures linked to the House Armed Services Committee and military historians at United States Military Academy who valued continuity exemplified by regiments like the 7th Infantry Regiment and 3rd Infantry Regiment (The Old Guard).

Structure and Organization

Under CARS, a regiment functioned primarily as a lineage and honors repository while operational units—battalions, squadrons, and companies—served under division, corps, or separate brigade commands such as the 1st Infantry Division and XV Corps. The system formalized elements including regimental headquarters and companies tied to headquarters at locations like Fort Bragg, Fort Hood, Fort Benning, and Fort Sill. Administrative control and career progression were coordinated with institutions including Army Human Resources Command and training centers at Fort Knox and Airborne School. Regimental underpinnings linked historic units—examples include the 10th Mountain Division’s constituent regiments and storied cavalry units like the 2nd Cavalry Regiment—to modernized battalion structures used during deployments to theaters such as Vietnam and Cold War garrisons in West Germany.

Implementation and Unit Lineage

Implementation involved reflagging existing battalions and companies to carry regimental designations, thereby maintaining campaign streamers and decorations associated with regiments like the 25th Infantry Division’s regiments and the 75th Ranger Regiment predecessors. The Army Historical Advisory Committee and the Center of Military History played central roles in adjudicating lineage claims and determining entitlement to honors such as Presidential Unit Citation and Distinguished Unit Citation colors. CARS enabled veterans of campaigns including Normandy, Iwo Jima, and Tet Offensive to maintain symbolic ties to regiments whose organic structures had dissolved, affecting units deployed under commands including MACV, USAREUR, and United States Southern Command.

Operations and Role in U.S. Army Doctrine

Though CARS was administrative rather than tactical, it influenced doctrine and unit cohesion used by formations in operations like Operation Power Pack, Operation Urgent Fury, and NATO exercises such as REFORGER. Doctrine developed at Combined Arms Center and promulgated in manuals from Department of the Army reflected an appreciation for regimental affiliation in leader development programs at institutions like Command and General Staff College and Infantry School. Units traced through CARS participated in contingency operations managed by commands including U.S. Southern Command and U.S. Central Command, drawing on heritage from conflicts like Operation Desert Shield while fulfilling Cold War deterrence tasks alongside allies in organizations such as NATO.

Transition to the U.S. Army Regimental System

By the late 1970s and early 1980s critiques of CARS and evolutions in personnel management led to replacement by the U.S. Army Regimental System (USARS) in 1981, a reform championed by leaders in the Office of the Chief of Staff of the Army and advocates at RAND Corporation and Brookings Institution. USARS aimed to strengthen regimental affiliation through career management, affiliation, and distinctive unit insignia policies applied across commands including FORSCOM and TRADOC. The transition affected historic units such as the 3rd Armored Cavalry Regiment, 1st Infantry Regiment, and airborne formations associated with XVIII Airborne Corps and involved coordination with the Army Institute of Heraldry to update insignia and heraldic devices.

Criticisms and Controversies

CARS attracted criticism from scholars and practitioners linked to institutions like Brookings Institution, Heritage Foundation, and academic centers at West Point for creating nominal regiments with limited tactical coherence, complicating unit histories and personnel records during operations such as Vietnam War deployments and postwar drawdowns. Debates before bodies like the House Armed Services Committee and among historians at the Center for Military History focused on lineage authenticity, the administrative burden on Army Human Resources Command, and tensions between ceremonial lineage—exemplified by units such as the Old Guard—and operational effectiveness in formations deployed to regions including Korea and Central America.

Category:United States Army organization