Chapter IX: 
 
The Korean War and its Aftermath
 
It is apparent that the United States is required to increase its military strength and preparedness not only to deal with the aggression in Korea but also to increase our common defense, with other free nations, against further aggression.
President Harry S. Truman 1
 
In June 1950, when a Soviet trained and armed North Korean army attacked South Korea, the Cold War turned hot. The U.S. Army was forced to adopt emergency expedients during the first months of the war, but the maintenance of a significant military sustaining base after World War II, a response to Soviet-American tensions, allowed the nation to mobilize more quickly and easily than in the past. Within a year and a half the number of Army combat divisions on active duty went from ten to twenty. The Army, reacting to changing political, strategic, and operational requirements worldwide, for the first time in its history reassessed its reserve forces during a major war. Nevertheless, the end of the fighting in Korea brought new reductions, which resulted in fewer Army divisions by the end of the decade than during the war.
 
Deployment of Forces to Korea
 
The invasion of South Korea on 25 June 1950 exposed a hollow Army. Divisions in Japan were completing a reorganization that reflected greatly reduced manning and equipment levels. The 1st Cavalry Division and the 7th, 24th, and 25th Infantry Divisions all lacked reconnaissance, military police, and replacement companies, medical detachments, and bands. Their infantry regiments were each short one battalion and the tank company, and the 105mm. howitzer battalions had only two firing batteries. Only one company or battery was filled in the tank and antiaircraft artillery battalions. Tank companies were equipped with the M24 light tank because the Far East Command had feared that heavier tanks would damage Japanese roads and bridges. The one exception was the 25th Infantry Division, which fielded a black regimental combat team built around the 24th Infantry. In that team the infantry regiment and the field artillery battalion had all their elements, but at reduced levels. The authorized strengths of the divisions ranged between 12,500 and 13,650 officers and enlisted men.2 
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Although the divisions fell well below war levels, President Harry S. Truman responded to the United Nations resolution to stop aggression in South Korea by ordering troops to Korea on 30 June. The next day Task Force Smith, elements of the 24th Infantry Division, the closest to Korea at Kobura, Japan, deployed to Suwon, South Korea, by air. The rest of the division quickly followed by sea. Shortly after the 24th's departure, the Far East Command brought the 25th Infantry Division and the 1st Cavalry Division to some semblance of effective fighting strength by stripping the 7th Infantry Division. By the end of July both divisions had joined in the fight, with the almost totally gutted 7th Division remaining in Japan.3  
 
As the three understrength divisions fought in Korea, the Army Staff set about to bring them to full strength, along with the 7th Infantry Division in Japan. Personnel were involuntarily extended, and the length of their overseas tours was increased. Other commands were cannibalized for units, personnel, and equipment. Particularly scarce in the Far East Command were tanks and antiaircraft artillery. Because all the divisional tank and antiaircraft artillery battalions there had been reduced to a company or battery, replacement units had to come from the United States. With the divisions in Korea taking heavy casualties and the replacement system on the verge of bankruptcy, several months elapsed before the units neared war levels.4
 
Heavy losses and the amount of time required for units and personnel to reach the Orient resulted in an agreement on 15 August between the Far East Command and the South Korean government for the temporary assignment of Korean nationals to U.S. Army units. Under the Korean Augmentation to the United States Army (KATUSA) program, approximately 8,600 Koreans were to serve in each American division as soldiers. Various barriers-language, cultural differences, inadequate training, and unfamiliarity with Army organization, weapons, and tactics-hindered the program from achieving its goal. A few months after the plan's inception, the command curtailed it because of improvements in the replacement system and the desire to concentrate on rebuilding the Republic of Korea Army. Although U.S. divisions continued to receive some Korean recruits, no division received the 8,600 initially envisaged.5
 
With United Nations troops being overwhelmed in South Korea, General Douglas MacArthur, the United Nations Forces commander, requested immediate reinforcements from the United States. In July he asked for the 2d Infantry Division, stationed at Fort Lewis; a regimental combat team from the 82d Airborne Division at Fort Bragg; and some smaller units. Army Chief of Staff General J. Lawton Collins refused to send a regimental combat team from the 82d Airborne Division, preferring to keep the division intact for other contingencies. Instead, he favored dispatching a team from the 11th Airborne Division at Fort Campbell built around the 187th Airborne Infantry. The Joint Chiefs of Staff obtained President Truman's approval for the moves on 9 July, but many units in the United States had to be stripped to fill the 2d Division before it could deploy.
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Picture - 2d Infantry Division elements move through a mountain pass south of Wonju, Korea, 1951.
2d Infantry Division elements move through a mountain pass south of Wonju, Korea, 1951.
 
Elements of the 2d arrived in Korea on 31 July, and the division entered combat in late August. The 187th did not arrive until October.6
 
The arrival of the 2d Infantry Division in Korea allowed Lt. Gen. Walton H. Walker, commanding the Eighth Army there, to withdraw the 24th Infantry Division from combat along the Naktong River. Due to the heavy losses sustained by the division, Walker decided to transfer all personnel and equipment from the 34th Infantry and the 63d Field Artillery Battalion to other units in the division, replacing them with the 5th Regimental Combat Team (organized around the 5th Infantry), which had recently arrived from Hawaii. With the infusion, the division was ready for combat again by the end of August. Subsequently the 34th Infantry and 63d Field Artillery Battalion returned to Japan, where they were reorganized to train replacements.7
 
In August 1950 MacArthur planned an amphibious assault at Inchon, Korea, that would include the 7th Infantry Division, the only U.S. Army division left in Japan. To replace it in his reserve, he requested deployment of the 3d Infantry Division, the last Regular Army infantry division in the United States. After much debate in Washington, Truman sanctioned its deployment. Since a large portion of its personnel and equipment had been withdrawn earli-
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er to meet other demands in Korea, the 3d Division had fewer than 5,000 men. To address the personnel problem, the division commander reassigned the personnel from one of its regimental combat teams and one general support field artillery battalion elsewhere in the division. At the same time, the Army Staff assigned two field artillery battalions and attached the 65th Infantry, the Puerto Rican regiment, to the division. The 3d Infantry Division arrived in Japan on 15 September, except for the 65th Infantry, which had moved directly to Korea from Camp Losey, Puerto Rico. In Japan the division received a Korean augmentation and began to train for combat. As elements of the 3d arrived in Japan, elements of the 7th Infantry Division landed at Inchon. Following the Chinese intervention in the war during the fall of 1950, the 3d Infantry Division also moved to Korea where the 65th Infantry joined it.8
 
The attachment of the 65th Infantry to the 3d Infantry Division marked a departure in the Army's segregation policies. In the past native Puerto Ricans were assigned exclusively to Puerto Rican units. In September 1951 the only units in which Puerto Ricans could serve outside the Caribbean area were elements of the 65th Regimental Combat Team in Korea. However, since more Puerto Ricans had entered the Army than were needed for these segregated Spanish-speaking units, the Army removed all restrictions on the assignments of Puerto Ricans who spoke English.9
 
The first few months of the war the Army relied on stopgap measures to field its six undermanned divisions in Korea but was still able to evolve a strategy for conducting the war. Under MacArthur, a strategy of attrition was quickly replaced by a strategy of annihilation. When the Chinese entered the war in the fall of 1950 the United Nations reverted to an attrition strategy, but one which depended on firepower rather than manpower. No major reinforcements would be provided to the forces in Korea. Although limited manpower mobilization in the United States solved many personnel problems in the Far East Command, divisions continued to lack trained infantry and artillery troops. After the United Nations spring counteroffensive, which ended on 8 July 1951, negotiations began for an armistice, with the number of Army divisions in Korea remaining fixed at six until the summer of 1953.10
 
Rebuilding the General Reserve
 
To field the divisions destined for Korea, the Army stripped the General Reserve of its resources. After the summer of 1950 its divisional units consisted of only the understrength 2d Armored Division, the partially organized 11th Airborne Division, and, closest to its wartime authorized strength, the 82d Airborne Division. The reserve had to be quickly rebuilt for other contingencies, particularly for Western Europe, where many national leaders feared a major challenge from the Soviet Union. In July defense officials began discussing the means for enlarging the Army, but many months passed before they
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decided upon a program. In the meantime, the Army expanded piecemeal. Secretary of Defense Louis Johnson approved the activation of another infantry division on 14 July 1950, but it was not until October that the 4th Infantry Division, which had been serving as a training division at Fort Ord, moved to Fort Benning to be reorganized as a combat unit. The Army Staff expected the division to be trained by the late spring of 1951.11
 
Because it would have taken too much time to organize new Regular Army divisions and Class B Organized Reserve Corps divisions (officers and enlisted cadre), the Army's leadership decided to recommend bringing some understrength National Guard divisions into federal service. On 10 August the president approved inducting four Guard infantry divisions. To accommodate them, the Army reactivated four World War II camps, and early in September the 28th (Pennsylvania), 40th (California), 43d (Connecticut, Rhode Island, and Vermont), and 45th (Oklahoma) Infantry Divisions entered active federal service. Army Field Forces and the Army Staff selected those units because of their geographic distribution, the status of their equipment, and their strength, which ranged from 8,000 to 9,500 officers and enlisted men each. The Army Staff immediately began working to bring the divisions up to their full table of organization and equipment strength.12  
 
Initially individual reservists recalled to active duty filled Regular and Guard divisions, but to maintain them and other divisions, as well as organize new units, the Army Staff relied on volunteers and draftees who were schooled in existing or reactivated training centers. To operate the centers, Army Field Forces activated five Regular Army divisions, the 8th Infantry at Fort Jackson, South Carolina; the 101st Airborne at Camp Breckinridge, Kentucky; the 5th Armored at Camp Chaffee, Arkansas; the 6th Armored at Fort Leonard Wood, Missouri; and the 7th Armored at Camp Roberts, California, between August and November 1950. The 6th Infantry Division was also reactivated to replace the 4th at Fort Ord.13
 
The Chinese intervention in the fall of 1950 stimulated broader mobilization measures. After considerable debate, President Truman declared a national emergency, which required additional military forces to meet the Soviet threat in Europe as well as to fight the war in Korea. The mobilization plan called for eighteen combat divisions to be on active duty by June 1952. To obtain the additional divisions, the president approved the induction of the National Guard's 31st (Alabama and Mississippi) and 47th (Minnesota and North Dakota) Infantry Divisions into federal service in January 1951. These were reorganized under reduced tables that called for approximately 14,500 officers and enlisted men. For the eighteenth division, the Army reactivated the Regular Army's 1st Armored Division in March. This last unit improved the balance in the active force among infantry, armored, and airborne divisions, which stood at 2 armored, 2 airborne, and 14 infantry.14
 
In the fall of 1951 the Joint Chiefs of Staff reevaluated the mobilization program and set a new goal of twenty-one active duty combat divisions by 31 December 1955. From the National Guard, the 37th (Ohio) and 44th (Illinois)
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TABLE 21
Combat Divisions on Active Duty During the Korean War
 
Division Component
1st Armored Regular Army
1st Cavalry Regular Army
1st Infantry Regular Army
2d Armored     Regular Army
2d Infantry     Regular Army
3d Infantry     Regular Army
4th Infantry     Regular Army
7th Infantry     Regular Army
11th Airborne     Regular Army
24th Infantry     Regular Army
25th Infantry     Regular Army
28th Infantry     National Guard
31st Infantry     National Guard
37th Infantry     National Guard
40th Infantry     National Guard
43d Infantry     National Guard
44th Infantry     National Guard
45th Infantry     National Guard
47th Infantry     National Guard
82d Airborne     Regular Army
 
Infantry Divisions were brought into federal service in early 1952, but the twenty-first division was not federalized or activated because of budgetary limitations. Thus the Korean War and the Cold War mobilization peaked at twenty divisions (Table 21).15  
 
Personnel policies for manning divisions during the Korean War differed from those used in World Wars I and II. Prior to 1951, when soldiers went overseas to fight, their tour was usually for the duration of the war. With far-flung commitments throughout Europe and Asia, Army leaders adopted a personnel rotation policy during the second year of the Korean War. They hoped such a system would avoid alienating the general public and maintain the morale of the soldiers themselves. To accommodate the additional personnel needed to implement the rotation, the training base was further expanded in the spring of 1951. The 5th Infantry Division was activated at Indiantown Gap Military Reservation, Pennsylvania, increasing the number of training divisions to ten, the maximum number during the Korean War (Table 22). General Reserve divisions were also tasked to train recruits.16
 
By April 1951 the Army was able to provide additional forces to improve the security of Japan, where no divisional reserve had existed since the Chinese inter-
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TABLE 22
Regular Army Training Divisions, 1950-56
 
Division Location Remarks
3d Armored1     Fort Knox, Ky.     Reorganized as a combat division in 1955
4th Infantry1     Fort Ord, Calif     Reorganized as a combat division in 1950
5th Armored     Camp Chaffee, Ark.     Activated in 1950; inactivated in 1956
5th Infantry     Indiantown Gap Military Reservation, Pa.    Activated in 1951;  inactivated in 1953
6th Armored     Fort Leonard Wood, Mo.     Activated in 1950; inactivated in 1956
6th Infantry2     Fort Ord, Calif     Activated in 1950; inactivated in 1956
7th Armored     Camp Roberts, Calif     Activated in 1950; inactivated in 1953
8th Infantry     Fort Jackson, S.C.     Activated in 1950; reorganized as a combat division in 1954
9th Infantry1     Fort Dix, N.J.     Reorganized as a combat division in 1954
10th Infantry l     Fort Riley, Kans.     Reorganized as a combat division in 1954
69th Infantry3     Fort Dix, N.J.     Activated in 1954
101st Airborne     Camp Breckinridge, Ky.     Activated in 1950; inactivated in 1953; activated in 1954; reorganized as a combat division in 1956
 
1 Activated before 1950.
2 Replaced the 4th Infantry Division.
3 Replaced the 9th Infantry Division.
 
vention in the Korean War. The 40th and 45th Infantry Divisions moved to Japan, where they completed their training. Congress insisted, however, that the National Guard divisions have an opportunity to fight, and in the winter of 1951-52 the 40th and 45th Divisions replaced the 1st Cavalry and 24th Infantry Divisions in Korea. The method of exchange revived a technique that had been developed during World War II. Ships that carried the 40th and 45th Infantry Divisions to Korea brought the 1st Cavalry Division and 24th Infantry Division back to Japan. The
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Picture - 40th Infantry Division troops prepare to replace the 24th Infantry Division, January 1952.
40th Infantry Division troops prepare to replace the 24th Infantry Division, January 1952.
 
units swapped all heavy equipment and supplies while the men carried only their personal arms and equipment with them. Thus the units experienced only a limited decline in combat efficiency. The two seasoned divisions returned to Japan to serve as a reserve. Until July 1953 the 2d, 3d, 7th, 25th, 40th, and 45th Infantry Divisions carried the fight in Korea. During the waning days of the conflict, immediately before the armistice on 25 July, the 24th Infantry Division returned to Korea as a rear area force to bolster the security of prisoner-of-war camps. 17
 
In 1952 Congress authorized what were in effect eight more divisions for the National Guard to replace the units in federal service. These organizations gave some areas of the country military forces where none had existed since units were federalized two years earlier for the Korean War. Under the new law the federal government could retain National Guard units (exclusive of personnel) for five years, but the states could organize replacements for the units in federal service. The new local units were to have the same designations as the units in federal service, with the additional identification NGUS (National Guard of the United States). Furthermore, the legislation required that when the Guard units in federal service were returned to the states, they were to be consolidated with their sister organizations. States began organizing NGUS units in 1952, and by the end of the Korean War on 23 July 1953, six out of the eight Guard divisions in federal service had local counterparts. Of the remaining two, the 37th Infantry Division (NGUS) received federal recognition on 15 January 1954, but the 44th never had an NGUS counterpart. The governor of Illinois, as an economy move, declined to organize it and requested the state's troop allotment be amended to delete the 44th Infantry Division. The division was removed from the force when it was released from federal service in December 1954.18
 
In addition to fighting the war in Korea in the early 1950s, the nation committed forces to the North Atlantic Treaty Organization (NATO). Since 1947 only the 1st Infantry Division had been stationed in Europe, but with the establishment of NATO President Truman announced a substantial increase in forces there. Between May and November 1951 the 2d Armored Division and the 4th, 28th,
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Picture - 4th Infantry Division leaves New York en route to Germany, 1951.
4th Infantry Division leaves New York en route to Germany, 1951.
 
and 43d Infantry Divisions joined the 1st Infantry Division in Germany. The commitment of these forces and similar actions by the NATO partners demonstrated a new reliance on collective security to deter aggression. 19  
 
Organizational Trends
 
During the Korean War the Army modified some aspects of its divisional organizations, but the basic triangular structures adopted during World War II and revised in the immediate postwar period for infantry, armored, and airborne divisions remained intact. In 1952 a divisional ordnance battalion replaced the ordnance company, which increased self-sufficiency in each type of division. The trend in most organizations, however, was to save personnel and increase firepower. Chief of Staff Collins estimated that the changes in the infantry division enhanced its firepower by 68 percent compared to its World War II counterpart with only a 20 percent increase in personnel.20
 
Firepower in the infantry regiment was increased through a series of changes. A 105-mm. recoilless rifle found a place within the regiment, as did the more powerful 3.5-inch "bazooka," a rocket fired from a shoulder position. In the first engagements of the Korean War, the 2.36-inch bazooka had proved inadequate against the Soviet T-34 tanks supplied to the North Koreans. To meet the Far East Command's requirement for an improved antitank weapon, 3.5-inch rocket launchers were rushed to the theater. On 20 July 1950 elements of the 24th Infantry Division used
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Picture - 3.5-inch rocket launcher in action against the North Koreans
3.5-inch rocket launcher in action against the North Koreans
 
them to knock out several Russian-built tanks, and thereafter the weapon received wide use. Infantry used new models of the 81-mm. and 4.2-inch mortars, and the number of automatic rifles was increased in the regiment.21
 
Improved aircraft technology provided all three types of divisions with new resources. The helicopter, boasting both vertical lift and hover capability, became a practical tactical and transport asset, playing a key role in supply and medical evacuation in Korea. Infantry and airborne divisions were authorized sixteen traditional fixed-wing aircraft and ten helicopters, while each armored division fielded eighteen aircraft and ten helicopters. The debate again surfaced as to whether all divisional aviation should be located in one unit since they usually used the same airfield. No separate aviation unit won approval, and technically the aircraft remained dispersed to the various units throughout the divisions. Divisions in combat, however, centralized their aircraft under divisional aviation officers who organized provisional aviation companies.22
 
The Army made more significant changes in the armored division. Although large armored formations were considered unsuitable for the rugged terrain in Korea, the Army still faced a massive Soviet armored threat in Europe. In response, the armored division fielded the first new family of tanks since World War II. The M103 (T43) tank armed with a 120-mm. gun was authorized for the heavy tank battalion. Weighing about sixty tons, it was the largest and most powerful American combat vehicle adopted to date. The new medium tank, the M47, had an improved fire control system and a high-velocity 90-mm. gun, which enhanced its lethality, but it did not become available in any quantity until 1953. For the reconnaissance
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Picture - An M41 light tank (Walker Bulldog) destined for the 705th Tank Battalion, 102d Infantry Division
An M41 light tank (Walker Bulldog) destined for the 705th Tank Battalion, 102d Infantry Division
 
squadron the tables provided for the new M41 light tank, nicknamed the "Walker Bulldog" for General 
Walker, who had been killed in a jeep accident in Korea. In a11, the armored division fielded 343 tanks.23
 
The divisions deployed in Korea, Japan, and Germany usually adopted changes shortly after they were 
announced, in contrast to those in the United States. The latter, except for the 82d Airborne Division, served in a training capacity, mostly providing replacements for the overseas forces. As noted, training centers failed to meet the demand for replacements, but the political decision to limit mobilization precluded expanding the existing training centers or opening others, forcing the Army to use combat divisions to perform that function.24
 
The Korean War brought about a major social change that touched all units throughout the Army. The Army had maintained all-black units since the Civil War, but military efficiency tests showed that blacks fought and performed better in integrated units than in segregated ones. Also, post-World War II social attitudes increased the demand for integration. In 1948 President Truman had directed desegregation of the armed forces, but the Army was slow, as were the other services, to respond. By May 1951, however, 61 percent of the line infantry companies in Korea had both white and black soldiers because little consideration was given to replacement by race. On 1 July of that year the Army authorized the new Far East commander, General Matthew B. Ridgway (Truman had relieved MacArthur the previous April) to integrate all units under his control, except for the 40th and 45th Infantry Divisions. These units, which had recently arrived from the United States, were exempt from the order because they were National Guard organizations. The Army feared political repercussions from the states if their units were racially mixed. Nevertheless, despite the initial hesitation, the 40th and 45th were integrated shortly after they entered combat in Korea.25
 
The Far East Command usually integrated units through normal administrative processes. For example, the 3d Battalion, 9th Infantry, and the 3d Battalion, 15th Infantry, elements of the 2d and 3d Infantry Divisions that had been filled with black soldiers, were desegregated by simply reassigning them. The 25th Infantry Division had the 24th Infantry, the only all-black regiment in the Regular
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Army, and Ridgway approved inactivating the regiment to disassociate all divisional elements with segregation. The Army Staff transferred the 14th Infantry, less its personnel and equipment, from the United States to the Far East Command, and on 1 August 1951 the regiment replaced the 24th in the division. Most of the 24th's black soldiers were dispersed throughout the command, while white soldiers to fill the 14th were drawn from the 34th Infantry in Japan. Units in the other regional commands integrated soon thereafter.26
 
Readjustment of Divisional Forces
 
Hostilities ended in Korea on 23 July 1953 when the United Nations and North Korea signed an armistice, but demobilization, like mobilization, did not follow a preplanned course. A threat still hung over Korea, and the defense of Western Europe remained of paramount concern. The size of the Army depended on the new president, Dwight D. Eisenhower, inaugurated in January 1953, who was committed to reducing military expenditures. Between 1 July 1953 and 1 July 1956, the Congress, at the president's request, cut the active Army from 1.5 to 1 million men, a reduction that required major adjustments in divisional forces.27
 
By that time the annual load in the training centers had stabilized at a lower peacetime level, and the Army Staff had turned its attention to improving the General Reserve, particularly as a reenforcement force for Europe. In October 1953 the staff designated the 1st Armored Division and 44th Infantry Division as 30-day reinforcement units for NATO and named the 82d Airborne Division as the Western Hemisphere's contingency force. To bring these and other divisions in the General Reserve up to war levels, the 5th Infantry, 7th Armored, and 101st Airborne Divisions, which had been operating training centers, were inactivated and their personnel reassigned. The training center operated by the 10th Infantry Division was also closed, and a new mission was planned for the division.28
 
In December 1953 Eisenhower, who had hesitated to reduce forces in Korea because of the precarious armistice, announced that two of the seven U.S. Army divisions there were to return home, a step permitted by improved capabilities of the South Korean Army. United States Army Forces, Far East, selected the 40th and 45th Infantry Divisions for return to the United States, and they departed Korea in the spring of 1954 with only a token personnel complement. Shortly thereafter the divisions were released from active federal service and reverted to state control. Concerned about the effects of demobilization because of events in Southeast Asia (the French were on the verge of withdrawing from that area), Secretary of Defense Charles E. Wilson suspended further reductions in the Far East Command on 7 April 1954.29
 
Although the Army could retain National Guard designations for five years, Secretary Wilson decided to release the 28th, 31st, 37th, and 43d Infantry Divisions to state control in June 1954. This decision was primarily an adminis-
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Picture - 37th Infantry Division passes 10th  Infantry Division in review before leaving Fort Riley
37th Infantry Division passes 10th  Infantry Division in review before leaving Fort Riley.
 
trative action and did not affect the actual number of combat or training divisions in active service. In Europe the 9th and 5th Infantry Divisions replaced the 28th and 43d Infantry Divisions, while the 8th and 10th Infantry Divisions in the United States replaced the 31st and 37th at Fort Carson and Fort Riley. The 69th Infantry Division and the 101st Airborne Division were reactivated to fill the gaps left by the 5th and 9th in the training base.30
 
By the summer of 1954 the Mutual Defense Treaty with the Republic of Korea and the expansion of its army to twenty divisions permitted additional American reductions in Korea and allowed the Department of Defense to release all reserve units from active duty. In October the 25th Infantry Division with its personnel and equipment moved from Korea to Hawaii, where it became part of the Pacific area reserve. Shortly thereafter the 2d and 3d Infantry Divisions, reduced to near zero strength in Korea, replaced the National Guard 44th and 47th Infantry Divisions at Forts Lewis and Benning. The Guard divisions returned to state control, thus ending the involvement of the reserve divisions in the Korean War. When those divisions left federal service, only their designations reverted to the states since the guardsmen themselves had been released earlier. The states reorganized the units, except for the 44th, which Illinois did not want, by using the NGUS divisions as the nuclei, as planned.31
 
After many revisions of the blueprints for a residual force in Korea, the Department of Defense instructed the services to plan for three divisions, one Army, one Marine, and one United Nations, plus combat support and combat service support units to remain there. In December 1954 Secretary Wilson decided that the Marine unit would return to the United States, leaving two Army divisions in Korea. As a result, the 24th Infantry Division, in the midst of moving to Japan, reversed its course and rejoined the 7th Infantry Division in Korea.32
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To improve the balance within Regular Army divisional forces after the Korean War, General Ridgway, who had become Army Chief of Staff in 1953, decided to revise the ratios among infantry, armored, and airborne units. In June 1954 the Fourth Army activated the 4th Armored Division, the first division to be equipped with the new M48 90-mm. tank. Ridgway planned to organize another armored division, raising the Regular Army total to four, but tank production lagged, preventing its formation until 1955. The 3d Armored Division was then converted from a training to a combat unit.33
 
Although total Army strength declined and the reserves were released, the Army remained committed to an active force of twenty divisions. The Department of Defense, therefore, authorized the activation of the 23d and 71st Infantry Divisions. Those units, dubbed "Wilson Divisions" after Secretary of Defense Wilson, who approved their activation while cutting the strength of the Army, made use of existing regimental combat teams. The 23d Infantry Division, the former Americal Division of World War II fame, controlled units stationed in the Canal Zone, Puerto Rico, and the southeastern United States from its headquarters at Fort Amador, Panama Canal Zone. The 71st, with its headquarters at Fort Richardson, Alaska, included units in Alaska and the northwestern United States. Because of their scattered divisional elements, the Army Staff labeled the divisions "static units," indicating that they were not capable of early deployment.34
 
With further cuts on the horizon for the Regular Army, the Army Staff had to economize on manpower if it was to maintain twenty divisions. A review of all divisional tables of organization resulted in slightly smaller divisions. For example, without a change in structure, the infantry division dropped from 18,212 men of all ranks to 17,452. In addition, the tables provided for a reduced peacetime strength division, with some 2,700 fewer men for each division in the General Reserve. Before its divisions were sent into combat, they would, of course, need sufficient time and personnel to be brought to war strength as required for sustained operations. The lessons of Task Force Smith and the deployment of other units to Korea in the summer of 1950 thus appeared to be already lost. General Reserve divisions adopted the new tables in the summer of 1955. In addition, because of the Army's severe manpower shortages divisions in Europe were also reorganized under the reduced tables that same summer, and the tables were applied to the 25th Infantry Division, posted at Schofield Barracks, the following year.35
 
Besides looking at the organizational tables for possible personnel cuts, the Army examined the individual replacement system. The system traditionally required the Army to maintain a large manpower overhead as a substantial percentage of its soldiers were always in transit. Lt. Gen. John E. Dahlquist, Chief of Army Field Forces, and Maj. Gen. Robert N. Young, the Army Staff's Deputy Chief of Staff for Personnel (G-1), believed that a unit replacement system would be more economical, improve esprit de corps, and provide more efficient units. In response, the Army Staff developed the GYROSCOPE program, which paired a division in the United States with an overseas division. Personnel from the paired
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divisions were to exchange places every three years. In addition, the divisions in the United States were to conduct basic and advanced individual training, cutting the training base and providing each soldier with a home throughout most of his career. It also theoretically made it possible to replace an entire division if it were destroyed in a nuclear attack.36
 
Beginning in 1955 fourteen divisions participated in the GYROSCOPE program (Table 23). To meet the changing needs of the Army, however, some deviation occurred during the duration of the program. For example, the l1th Airborne Division from Fort Campbell replaced the 5th Infantry Division in Germany in 1956, but the 5th's new station was Fort Ord, a former training center. Several benefits resulted: the European command received an airborne division, a unit it had wanted for some time; the U.S. Continental Army Command (CONARC), successor to the Army Field Forces, gained a post, Fort Campbell, and equipment to test a new divisional structure for the airborne division; and the number of divisions remained unchanged.37
 
As the divisions rotated, the U.S. Army, Europe, and Seventh Army closely monitored their activities and readiness to determine the effect of the moves on the units. They found that divisional combat efficiency declined for a number of weeks before and after rotation, and Lt. Gen. Bruce C. Clarke, Seventh Army commander, recommended limiting GYROSCOPE to units smaller than divisions. In 1958 the last divisional exchange took place when the 3d Infantry Division from Fort Benning replaced the 10th Infantry Division. Thereafter the program involved only smaller-size units. On I September 1959 the Army terminated GYROSCOPE, following the recommendations of General Clyde D. Eddleman, Commander, U.S. Army, Europe, who believed that other replacement systems worked better with less disruption. GYROSCOPE helped to sustain morale, but the scheme did not save money or improve combat readiness.38
 
TABLE 23
Operation GYROSCOPE
 
Year CONUS OCONUS
Division Station Division Station
1955     10th Infantry     Fort Riley, Kans.     1st Infantry     Germany
1956     11th Airborne     Fort Campbell, Ky.     5th Infantry1     Germany
1956     3d Armored     Fort Knox, Ky.     4th Infantry2     Germany
1956     2d Infantry     Fort Lewis, Wash.     71st Infantry3     Alaska
1956     8th Infantry     Fort Carson, Colo.     9th Infantry     Germany
1958     4th Armored     Fort Hood, Tex.     2d Armored     Germany
1958     3d Infantry     Fort Benning, Ga.     10th Infantry     Germany
 
1 The 5th Infantry Division's new station was Fort Ord, California. 
2 The 4th Infantry Division was reduced to zero strength. 
3 The 71st Infantry Division was inactivated, and the 4th Infantry Division replaced it.
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With divisions in the GYROSCOPE program conducting individual training, the Department of the Army reduced the number of training centers. By 1 July 1955 only seven major training centers remained, of which five were operated by divisions. The continued use of divisional names for the centers, however, was being questioned. Lt. Gen. Walter L. Weibir, the G-1, wanted to change the centers' names to reflect their missions more accurately. For some time the divisional designations had confused the general public, government officials, and the trainees. In the spring of 1956 the Army thus inactivated the 6th and 69th Infantry Divisions and 5th and 6th Armored Divisions and reassigned the 101st Airborne Division as a test unit. Branch replacement centers replaced the training divisions. For example, the organization at Fort Chaffee, Arkansas, became the U.S. Army Training Center, Field Artillery.39
 
The savings that resulted from the revised tables of organization, modifications in the replacement system, and a reduction in the training base did not equal the required cuts in Army strength. The Army was therefore unable to maintain twenty Regular Army divisions. Further reductions required the commanders of United States Army, Caribbean, and Sixth Army to inactivate the 23d and 71st Infantry Divisions in 1956. Some of their elements, however, continued to serve in the active force.40
 
Improving the Reserves
 
The structure of the reserve components came under close scrutiny during the Korean War. By then military leaders had decided the large undermanned force of fifty-two divisions developed after World War 11 was unrealistic. On 24 October 1950 the chief of staff directed a committee to reevaluate the reserve structure and develop plans to meet both limited and major mobilizations. Six months later, before the decision to mobilize 20 divisions due to the Korean War, the committee reported that the Army needed 18 divisions on active duty-12 Regular Army and 6 National Guard-and 33 reserve divisions to back them up. The latter divisions fell into two categories for mobilization, an early ready force of 9 divisions from the National Guard and a late ready force of 24 divisions with 12 from the Guard and 12 from the Organized Reserve Corps. The units in the National Guard were to be maintained at 100 percent officer and 50 percent enlisted strength, while those in the Organized Reserve Corps were to have 100 percent of their officers but only an enlisted cadre. The committee decided that the remaining thirteen Organized Reserve Corps divisions were unnecessary and recommended their immediate inactivation.41
 
During the summer and fall of 1951 the six army commanders in the United States, staff agencies, and the Section V Committee, created after World War I for the reserve components to have a voice in their affairs, evaluated the plan. The army commanders urged that all divisions in the Organized Reserve Corps be infantry divisions because they believed that the reserves could not adequately
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support armored and airborne training. They thought thirteen, rather than twelve, reserve divisions should be maintained to provide a better geographic distribution of the units. The Section V Committee opposed the reduction of the Organized Reserve Corps from twenty-five to thirteen divisions because it feared unfavorable publicity, particularly with the nation at war. On 20 December the Vice Chief of Staff, General John E. Hull, delayed reduction in the number of Reserve Corps divisions until 31 December 1952 but directed the reorganization and redesignation of airborne and armored divisions as infantry as soon as practicable. In March 1952 the 80th, 84th, 100th, and 108th Airborne Divisions were reorganized and redesignated as infantry divisions, and the 63d, 70th, and 75th Infantry Divisions replaced the 13th, 21st, and 22d Armored Divisions. The Army made no other divisional changes in the reserve troop basis at that time.42
 
Along with the reorganization of the Organized Reserve Corps divisions, the Army published new regulations formalizing a "Ready Reserve" concept. Under the new rules the Ready Reserve comprised Early and Late Ready Forces, categories which replaced the old Class A, B, and C units. The Early Ready Force was to have 110 percent officer and 100 percent enlisted strength, while the Late Ready Force, which included all Organized Reserve Corps divisions, was to have 100 percent officer and 5 percent enlisted strength. In July 1952 Congress passed new legislation that redesignated the Organized Reserve Corps as the Army Reserve and gave legal status to the concept of the Ready Reserve.43
 
Before the dust had settled on the reforms, the Army realized that it had failed to improve unit manning or meet reasonable mobilization requirements. In the fall of 1952 Army leaders thus proposed that the personnel from the thirteen inactivated Army Reserve divisions be assigned to strengthen the remaining twelve divisions. A new reserve troop basis resulted, this time calling for 37 divisions, 27 in the National Guard and 10 in the Army Reserve. To keep the unneeded fifteen Army Reserve divisions active, they were to be reorganized as training divisions to staff training centers upon mobilization or man maneuver area commands for training troops. The continental army commanders implemented the new Army Reserve troop basis in 1955 piecemeal. They reorganized, without approved tables of organization, the 70th, 76th, 78th, 80th, 84th, 85th, 89th, 91st, 95th, 98th, 100th, and 108th Infantry Divisions as cadre for replacement training centers and organized the 75th "Maneuver Area Commands" using the resources of the 75th Infantry Division. Two years later the 75th Infantry Division was inactivated along with 87th Infantry Division. Assets of the 87th were used to organize a maneuver area command; thus one unneeded division remained in the troop basis.44
 
To prepare for challenges in Western Europe, the new troop basis authorized the conversion of four National Guard infantry divisions to armored divisions. New York, California, Georgia, and Florida agreed to convert the 27th, 40th, and 48th Infantry Divisions. For the fourth armored division, the Army planned to use the slot temporarily occupied by the 44th Infantry Division, which Illinois no longer wanted. Eventually Tennessee and North Carolina, which shared the 30th Infantry
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Division, each agreed to maintain a division; Tennessee organized the 30th Armored Division, while North Carolina organized the 30th Infantry Division.45
 
In 1955 Congress again legislated measures to improve the reserves. Among the amendments to the 1952 law was a provision that allowed young men eighteen and a half years old to enlist in the Army Reserve for eight years. Not less than three and not more than six months of that obligation was to be spent on active duty for basic training. The law also provided that reservists who did not perform satisfactorily after basic training might be ordered, without their consent, to active duty not to exceed forty-five days. Although the Army Reserve hoped these provisions would help to meet manning problems, the measure failed. Most young men were uninterested in military service, and for the few who were the active Army lacked the resources to provide basic training and the National Guard proved more attractive than the Army Reserve.46
 
At the beginning of 1957 the Army thus had 56 combat divisions and 12 training divisions. Of these, the Regular Army fielded 18 combat divisions, many not fully manned; the National Guard 27; and the Army Reserve 11. Of the 56 divisions, 3 were airborne, 10 were armored, and the remainder were infantry.
 
Between 1950 and 1957 Army divisions fought a war in Korea and deterred the Soviet challenge in Western Europe. At the height of the Korean War the active Army had eight divisions in the Far East, five in Germany, and a seven division General Reserve in the United States. Divisions retained their World War II structure with modifications while gaining additional firepower. As the United States assumed leadership of the Western democracies, a ready force, backed by fully manned and equipped reserves, took on added significance. Nevertheless, the Regular Army, National Guard, and Army Reserve divisions all suffered from a lack of personnel. After the Korean War budgetary constraints exacerbated the manning conditions, while the general reliance of the Eisenhower administration on nuclear deterrence put the fiscal emphasis on weapons systems rather than on the combat divisions.
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Endnotes

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