Map 1: Geographic Regions South Vietnam
Map 1


CHAPTER I

U.S. Army Engineers in 1965

The growing American commitment to the preservation of the Republic of Vietnam found its most dramatic manifestation in 1965 in the rapid manpower buildup carried out by the US Army. The expanding involvement of the Army Engineer forces was more a reaction to the growing US strength in Vietnam than the execution of a precisely drawn plan. From the time the first large contingent of Army engineer troops waded ashore at Cam Ranh Bay in June 1965, the demands upon the engineers were so immediate and overwhelming that their initial mission appeared impossible. At Cam Ranh the sand, the heat, tropical rains, and the incessant calls for engineer assistance all contributed to a discouraging situation, but the engineer troops there, as elsewhere in South Vietnam, were to establish themselves rapidly as formidable challengers of the impossible. In an amazingly short time they would change the face of a country, win the admiration and respect of those who depended upon them so heavily for support and facilities, and contribute substantially to the defense of the republic.

Beginning of the Troop Buildup

In January 1965 it was obvious that North Vietnam's immediate objective was a full-scale offensive aimed at cutting South Vietnam in two and capturing the local and district centers of government. If successful such a move would place the Saigon government in jeopardy and might give Hanoi its long-sought total victory. The United States responded to the urgency of the situation by deploying forces to the extent necessary to thwart any hopes Hanoi might entertain for an easy and immediate victory in the south.

The United States military commitment in South Vietnam in January 1965 consisted of about 23,000 men of whom fewer than a hundred were Army engineer troops. This force, the United States Military Assistance Command, Vietnam (MACV), consisted of a substantial number of US advisers with South Vietnamese units, Army and Marine Corps helicopter units with their necessary logistic support, the 5th US Special Forces Group, seven Air Force squadrons, a Navy headquarters command in Saigon, and an office

[3]


of the Navy's Bureau of Yards and Docks whose function it was to supervise civilian contractor construction support to the various US military elements in Vietnam. The civilian contractors alone, however, could not be expected to cope with a dangerously deteriorating military situation and the rapid influx of US Army forces.

Initial deployment of US ground combat forces took place in early March of 1965 when marines of the 9th Marine Expeditionary Brigade, later redesignated the III Marine Amphibious Force, landed at Da Nang and took up defensive positions in the very vulnerable northern provinces of South Vietnam. The 173d Airborne Brigade was airlifted from Okinawa to Bien Hoa on 5 May to relieve South Vietnamese Army forces of some of their security responsibilities and to free them for missions designed to search out and destroy threatening forces. With the growth in tactical responsibilities of US forces in 1965, more combat and logistical support units became necessary.

Late in 1964 General William C. Westmoreland as the senior US commander in South Vietnam had recommended to the US Joint Chiefs of Staff the deployment of an Army Engineer group and a logistical command to South Vietnam. Although the need for a sound logistical base and more extensive US support facilities was foreseen as early as 1962, resources for them had not been provided at the time. The Joint Chiefs approved General Westmoreland's request, noting that a "military capability was needed to supplement that of the construction contractor and to respond to a critical need for military engineers to accomplish work unsuitable for the contractor." On 15 January 1965 the request was forwarded to Secretary of Defense Robert S. McNamara, who turned it down after a task force visited South Vietnam in February. Instead, he approved deployment to Vietnam of 38 logistical planners and 37 operating personnel. General Westmoreland had requested 3,800 logistical troops and 2,400 engineers.

The director of the Pacific division of the Bureau of Yards and Docks, a naval officer, had stated that the contractor's "mobilization and rate of construction accomplishment can and will be promptly expanded as required by further program expansion." At that time, however, the potential extent of "further program expansion" was unknown. It was soon to become all too apparent that a critical gap with regard to engineer resources existed in contingency planning for the buildup of US forces.

Early planning for the buildup and operations in Vietnam had little more to go on than tentative indications of the number of maneuver battalions that might be deployed. There was no generally accepted tactical concept, campaign plan, or scheme of logistic sup-

[4]


port upon which effective engineer planning could be based. In fact, subsequent difficulties tended to confirm that there had been a remarkable lack of appreciation of the amount of engineer effort required to support deployments of the scale being considered in early 1965. The myriad factors to be considered in planning for any one of the hundreds of engineer tasks to be performed made the planning process much more complex than most commanders who were not engineers realized. The essence of engineer planning involves a series of evaluations, improvisations, and compromises which, when given proper attention, produce comprehensive and effective engineer support.

The most immediate consideration in any construction planning is the selection of the site, its preparation, and its development. Next, material and manpower requirements have to be studied with respect to the type of facilities to be constructed. Methods and particular techniques to be employed in construction are determined. Various options in design are considered and the choice is made on the basis of utility and materials available. Most important of all, requests have to be fed into supply channels to insure timely and sequential delivery of construction materials to the site in order that the project can be completed within the time allotted. The size and scope of the initial engineer work load in South Vietnam caused inevitable shortcuts in the planning process at various levels resulting in equally inevitable delays and complications in execution.

Convincing the Department of the Army staff, the Joint Chiefs of Staff, and Department of Defense officials that engineering requirements had expanded was made more difficult by the normal tendency of these organizations to wait for the statements of requirements sent in by the overseas commanders. These commanders, however, were ill prepared to make such crash estimates because they lacked enough qualified staff engineers. Indicative of the problem was the fact that the US Army Support Command, Vietnam, the predecessor of both the 1st Logistical Command and Headquarters, US Army, Vietnam, had only a very small number of engineers in the country. The assigned engineers had been committed primarily for maintenance of facilities in support of the advisory groups and for minor construction projects for the Army aviation units that were already engaged in supporting South Vietnamese forces.

The engineers in Vietnam worked hard to assemble a reasonably valid Army base development plan and construction program before the arrival of the first major engineer contingents. But force levels, tactical concepts, and stationing plans were so tenuous that precise long-range planning was impossible. Only through ingenuity and a

[5]


good bit of scrounging were some materials made available to the first engineer units to arrive in Vietnam.

Expansion of the Training Base

Throughout the spring and early summer of 1965 it was generally assumed both within the Department of the Army staff and at Headquarters, United States Continental Army Command, that any augmentation of the Army force structure would include at least a partial call-up of Reserve component units and men. As late as 22 July 1965 in a briefing to a conference of selected Army commanders, Major General Michael S. Davison, Acting Assistant Chief of Staff for Force Development, reported that on 16 July the Department of the Army had received tentative guidance which authorized an increase of 350,000 in the strength of the Army by the end of fiscal year 1966 (30 June 1967). Of this number, 100,000 spaces were to be filled by members of Reserve components.

Contingency plans for a manpower buildup in the Department of the Army contained the proposed call-up of Reserve components and men for a period not to exceed twelve months. Based upon experience gained during a partial mobilization in 1961, Continental Army Command plans had called for an even larger two­year activation of Reserve component units. Experience had shown that Reserve units could be readied for deployment overseas much more quickly than could reorganized or newly activated units in the active Army. It was the contention of Continental Army Command that approximately seven months lead time was required to prepare Reserve units for relief from active duty, and that so much lead time tended to defeat the effectiveness of an activation of only twelve months. Policies set at higher levels, however, prohibited Reserve call-ups of a duration greater than one year, and consequently Continental Army Command's plan could not be supported.

In any event all such plans were rendered useless on 28 July 1965. On that date in a nationally televised press conference, President Lyndon B. Johnson announced plans for the buildup of US forces in South Vietnam. US combat forces in Vietnam would be increased immediately to 125,000 men, with additional forces to be deployed as necessary. This increase was to be accomplished, the President went on to say, through expansion of the active Army by increased draft calls, but no Reserve units or individuals were to be called up.

Since major planning policies for expanded US activity in, Southeast Asia had been based on the now fallacious assumption that a significant proportion of the necessary manpower would come

[6]


Map 2: CONUS Engineer Bases January 1965
Map 2

[7]


from Reserve components, the stage was set for shortages not only of units but also of men with technical training and managerial ability. In the understandable desire to maximize its readiness to fight, the Army tries to retain a high proportion of combat formations in its active forces in peacetime. The cost is always a shortage of ready-to-go support units, including engineers. Major General Thomas J. Hayes III described the situation when he observed that "supporting units seem to bear more than their share of losses as a Nation progressively reduces its Armed Forces in the years between wars." After the Korean War many military activities were turned over to civilians in the United States and the military establishment became more and more dependent on the Reserves for the majority of Army combat support units as well as technicians required for wartime operations.

Suddenly deprived of their anticipated reservoir of trained and skilled manpower, the services in varying degrees experienced difficulty in meeting initial and subsequent requirements for logistic and combat support troops and units. The Army was hit hardest of all. Its strength requirements increased rapidly, and with already critical deficiencies in the support units the decision not to mobilize the Reserves or to allow selective call-up of experienced men led the Army to draw necessary men from other theaters. New units were later activated in the United States and soon after sent to South Vietnam; the peak of the engineer buildup was reached in January of 1968. (Map 2, Charts 1 and 2)

Since nearly half the Army's engineers and engineer equipment rested with Reserve components, equipment in the early stages of expansion had to be gathered from Reserve units all over the country to outfit fully those Regular Army units alerted for Vietnam. Crash training programs, intensive recruitment of civil service employees, reduction of stateside and European tours of duty, and volunteer programs were initiated to help fill immediate manpower needs. When these programs failed to meet the demands, the Army began to place officers of its other branches on detail in the Corps of Engineers.

The Army had to expand its training base to provide the troops necessary to meet Vietnam deployment schedules as well as to satisfy the worldwide requirements for individual replacements in accordance with the Army's rotational overseas service policy. The US Continental Army Command had the responsibility for shipping entire units as well as individual replacements to Vietnam and at the same time maintaining an adequate strategic Army force and training base in the United States.

The Continental Army Command's principal centers for engi-

[8]


CHART 1-LOCATION OF ENGINEER UNITS IN THE UNITED STATES,
JANUARY 1965
Fort Belvoir, Virginia

21st Engineer Company (Map)

30th Engineer Battalion (Topography)

38th Engineer Detachment (Well Drilling)

60th Engineer Detachment (Special Equipment Maintenance)

67th Engineer Detachment (General)

73d Engineer Company (Construction Support)

80th Engineer Detachment (Forestry)

81st Engineer Detachment (Forestry)

87th Engineer Battalion (Construction)

91st Engineer Battalion (Combat)

99th Engineer Company (Topography)

100th Engineer Company (Float Bridge)

156th Engineer Detachment (Well Drilling)

171st Engineer Detachment (Well Drilling)

497th Engineer Company (Port Construction)

514th Engineer Detachment (Chemical)

518th Engineer Detachment (General)

521st Engineer Detachment (Water Tank)

523d Engineer Detachment (Topography)

536th Engineer Platoon (Port Construction)

537th Engineer Company (Topography)

540th Engineer Detachment (Special Equipment Maintenance)

547th Engineer Detachment (Map)

565th Engineer Detachment (Water Tank)

569th Engineer Detachment (Water Tank)

573d Engineer Detachment (Water Tank)

581st Engineer Company (Maintenance, Direct Support)

585th Engineer Company (Dump Truck)

588th Engineer Detachment (Well Drilling)

610th Engineer Detachment (Construction)

Fort Benning, Georgia

2d Engineer Battalion (Divisional)

36th Engineer Detachment (Water Purification)

544th Engineer Detachment (Utility)

586th Engineer Company (Float Bridge)

Fort Bliss, Texas

42d Engineer Detachment (Field Maintenance)

82d Engineer Detachment (Field Maintenance)

31st Engineer Battalion (Combat)

630th Engineer Company (Light Equipment)

[9]


CHART 1-LOCATION OF ENGINEER UNITS IN THE UNITED STATES,
JANUARY 1965-Continued
Fort Bragg, North Carolina

14th Engineer Battalion (Combat)

14th Engineer Detachment (Water Purification)

64th Engineer Company (Maintenance, Direct Support)

66th Engineer Company (Topography)

82d Engineer Company (Supply)

86th Engineer Detachment (Utility)

102d Engineer Company (Construction Support)

159th Engineer Group (Construction)

500th Engineer Company (Panel Bridge)

501st Engineer Company (Supply)

508th Engineer Detachment (Utility)

517th Engineer Detachment (Terrain)

533d Engineer Detachment (Intelligence)

534th Engineer Detachment (Intelligence)

535th Engineer Detachment (Intelligence)

568th Engineer Detachment (Water Tank)

573d Engineer Company (Float Bridge)

Fort Campbell, Kentucky

27th Engineer Battalion (Combat)

39th Engineer Battalion (Combat)

46th Engineer Detachment (Utility)

70th Engineer Battalion (Combat)

326th Engineer Battalion (Airborne)

511th Engineer Company (Panel Bridge)

553d Engineer Company (Float Bridge)

572d Engineer Company (Light Equipment)

597th Engineer Company (Maintenance, Direct Support)

937th Engineer Group (Combat)

Fort Carson, Colorado

7th Engineer Battalion (Divisional)

Columbus Army Depot, Ohio

141st Engineer Detachment (Parts)

142d Engineer Detachment (Parts)

Fort Devens, Massachusetts

20th Engineer Battalion (Combat)

507th Engineer Detachment (Utility)

553d Engineer Detachment (Utility)

Fort Dix, New Jersey

86th Engineer Battalion (Combat)

Fort Gordon, Georgia

299th Engineer Battalion (Combat)

[10]


CHART 1-LOCATION OF ENGINEER UNITS IN THE UNITED STATES,
JANUARY 1965-Continued
Granite City Army Depot, Illinois

185th Engineer Company (Highway Maintenance)

273d Engineer Detachment (General Support)

512th Engineer Detachment (General Support)

513th Engineer Detachment (General Support)

574th Engineer Company (Depot)

593d Engineer Group (Maintenance)

Fort Hood, Texas

16th Engineer Battalion (Combat)

17th Engineer Battalion (Combat)

542d Engineer Detachment (Special Equipment Maintenance)

567th Engineer Detachment (Water Transport)

569th Engineer Company (Topography)

Fort Knox, Kentucky

522d Engineer Company (Armor)

Fort Lee, Virginia

76th Engineer Company (Maintenance, Direct Support)

329th Engineer Detachment (Utility)

362d Engineer Company (Light Equipment)

526th Engineer Detachment (Utility)

588th Engineer Battalion (Combat)

Fort Lewis, Washington

4th Engineer Battalion (Divisional)

178th Engineer Company (Maintenance, Direct Support)

504th Engineer Detachment (Field Maintenance)

543d Engineer Detachment (Field Maintenance)

549th Engineer Detachment (Special Equipment Maintenance)

554th Engineer Company (Float Bridge)

557th Engineer Company (Light Equipment)

617th Engineer Company (Panel Bridge)

905th Engineer Detachment (Water Purification)

Loring Air Force Base, Maine

628th Engineer Detachment (Field Maintenance)

Fort Meade, Maryland

19th Engineer Battalion (Combat)

Fort Ord, California

59th Engineer Company (Armor)

Fort Polk, Louisiana

168th Engineer Battalion (Combat)

578th Engineer Company (Maintenance, Direct Support)

Presidio of San Francisco, California

510th Engineer Detachment (Utility)

[11]


CHART 1-LOCATION OF ENGINEER UNITS IN THE UNITED STATES,
JANUARY 1965-Continued
Fort Riley, Kansas

1st Engineer Battalion (Divisional)

509th Engineer Company (Panel Bridge)

593d Engineer Detachment (Fire Fighting)

Fort Rucker, Alabama

92d Engineer Battalion (Construction)

Fort Sill, Oklahoma

593d Engineer Company (Construction)

Fort Stewart, Georgia

169th Engineer Battalion (Construction)

Fort Story, Virginia

2d Engineer Amphibious Support Company

560th Engineer Amphibious Equipment Company

793d Engineer Amphibious Equipment Company

West Point, New York

6th Engineer Battalion (Combat)

50th Engineer Company (Construction)

Fort Wolters, Texas

697th Engineer Company (Pipeline)

Fort Leonard Wood, Missouri

31st Engineer Detachment (Field Maintenance)

46th Engineer Battalion (Construction)

62d Engineer Battalion (Construction)

63d Engineer Detachment (Field Maintenance)

103d Engineer Company (Construction Support)

520th Engineer Company (Maintenance, Direct Support)

582d Engineer Detachment (Field Maintenance)

643d Engineer Company (Pipeline)

921st Engineer Group (Headquarters and Headquarters Company)

 

CHART 2-ENGINEER UNITS ON ACTIVE DUTY, CONTINENTAL UNITED
STATES, JULY 1965
Engineer Group Headquarters

159th Engineer Group1

921st Engineer Group

937th Engineer Group 1

Combat Engineer

1st Engineer Battalion1

2d Engineer Battalion

4th Engineer Battalion 1

[12]


CHART 2-ENGINEER UNITS ON ACTIVE DUTY, CONTINENTAL UNITED
STATES, JULY 1965-Continued

7th Engineer Battalion (-)1

14th Engineer Battalion1

16th Engineer Battalion

17th Engineer Battalion

19th Engineer Battalion1

20th Engineer Battalion1

27th Engineer Battalion1

31st Engineer Battalion1

39th Engineer Battalion1

70th Engineer Battalion1

86th Engineer Battalion1

91st Engineer Battalion

169th Engineer Battalion1

186th Engineer Battalion1

299th Engineer Battalion1

326th Engineer Battalion1

588th Engineer Battalion1

59th Engineer Company (Armored)

522d Engineer Company (Armored)

Construction Engineer

46th Engineer Battalion1

62d Engineer Battalion1

87th Engineer Battalion1

92d Engineer Battalion1

50th Engineer Company

593d Engineer Company

610th Engineer Detachment

Float Bridge

100th Engineer Company1

553d Engineer Company1

554th Engineer Company1

573d Engineer Company1

586th Engineer Company

Panel Bridge

500th Engineer Company1

509th Engineer Company1

511th Engineer Company1

617th Engineer Company1

Light Equipment

362d Engineer Company1

557th Engineer Company1

[13]


CHART 2-ENGINEER UNITS ON ACTIVE DUTY, CONTINENTAL UNITED
STATES, JULY 1965-Continued

572d Engineer Company1

630th Engineer Company1

Construction Support

73d Engineer Company1

82d Engineer Company

102d Engineer Company 1

103d Engineer Company1

501st Engineer Company

643d Engineer Company1

Map Depot

547th Engineer Platoon1

Base Photo Map

21st Engineer Company

Engineer Utility

46th Engineer Detachment1

86th Engineer Detachment 1

329th Engineer Detachment1

507th Engineer Detachment1

508th Engineer Detachment1

510th Engineer Detachment1

544th Engineer Detachment1

553d Engineer Detachment1

Engineer Dump Truck

585th Engineer Company1

Engineer Pipeline

697th Engineer Company

Water Transport

567th Engineer Detachment 1

568th Engineer Detachment1

Well Drilling

38th Engineer Detachment1

156th Engineer Detachment1

171st Engineer Detachment1

588th Engineer Detachment 1

Engineer Heavy Maintenance2

185th Engineer Company

Engineer Maintenance and Support Group Headquarters

593d Engineer Group

Direct Support Maintenance

64th Engineer Company

76th Engineer Company

[14]


CHART 2-ENGINEER UNITS ON ACTIVE DUTY, CONTINENTAL UNITED
STATES, JULY 1965-Continued

178th Engineer Company1

520th Engineer Company

578th Engineer Company

581st Engineer Company

597th Engineer Company

Field Maintenance

31st Engineer Detachment

42d Engineer Detachment

63d Engineer Detachment

82d Engineer Detachment

504th Engineer Detachment

520th Engineer Detachment

543d Engineer Detachment

628th Engineer Detachment

Special Equipment Maintenance

60th Engineer Detachment1

540th Engineer Detachment

542d Engineer Detachment

549th Engineer Detachment

Depot

574th Engineer Detachment

Amphibious

2d Engineer Amphibious Support Company

560th Engineer Equipment Company

793d Engineer Equipment Company

General Support

273d Engineer Detachment1

512th Engineer Detachment

513th Engineer Detachment1

Parts

141st Engineer Detachment1

142d Engineer Detachment1

Firefighting

582d Engineer Detachment

593d Engineer Detachment

Forestry

80th Engineer Detachment1

81st Engineer Detachment1

Water Purification

14th Engineer Detachment1

36th Engineer Detachment1

905th Engineer Detachment1

[15]


CHART 2-ENGINEER UNITS ON ACTIVE DUTY, CONTINENTAL UNITED
STATES, JULY 1965-Continued
Port Construction

497th Engineer Company1

536th Engineer Detachment1

Water Tank

521st Engineer Detachment1

565th Engineer Detachment1

569th Engineer Detachment1

573d Engineer Detachment1

Gas Generator

67th Engineer Detachment1

518th Engineer Detachment1

Carbon Dioxide Generator

514th Engineer Detachment1

Topographic

30th Engineer Battalion

66th Engineer Company1

569th Engineer Company1

Base Survey

537th Engineer Company

Reproduction Base

99th Engineer Company

Geodetic Survey

523d Engineer Detachment

Terrain

517th Engineer Detachment1

Technical Intelligence Research

533d Engineer Detachment

534th Engineer Detachment

535th Engineer Detachment


1 Deployed to South Vietnam before January 1968.
2
The functions of engineer equipment maintenance were reassigned by the Army to Ordnance Corps carrier units in 1965. Consequently few engineer maintenance units were sent to South Vietnam. Most provided personnel fillers and were soon inactivated.

neer training were Fort Leonard Wood, Missouri, and Fort Belvoir, Virginia. Like other Army training centers, their operations and training programs had been greatly curtailed during the years after Korea. Now their facilities would again undergo a tremendous expansion within a very short time. It is a tribute to the command's flexibility and responsiveness that the manpower crisis was met; the 235,000-man increase in Army strength had been absorbed by Continental Army Command by 20 June 1966.

Within the Army engineer troop structure, the major problems in the expansion of US efforts in South Vietnam arose from shortages of men, equipment, and materials. The proportion of Engineer

[16]


units in the active Army before the buildup promised to be woefully inadequate. In a situation in which most equipment had to be bought through a time-consuming procedure of competitive procurement, availability of equipment was the deciding factor not only in the activation of new units within the continental United States but also in establishing dates for unit readiness. Since there were critical shortages of technically trained officers and certain enlisted specialists such as equipment operators and maintenance men, new recruits in steadily rising numbers were funneled into the advanced individual training facilities at Forts Leonard Wood and Belvoir to be schooled in basic engineering skills.

When increased draft calls and a related jump in enlistments raised the number of men to be trained beyond the capacity of the existing training base, new programs had to be instituted. To bring units to full strength as soon as possible as well as to relieve some of the stress on normal training facilities, Strategic Army Forces units were assigned some of the responsibility for training recruits under what was known as the "train and retain as permanent party" system. Under this program a specialized unit could train men to fill particular positions in the unit with the prospect of keeping them to alleviate its own shortages. Because of the diversity of engineer training, however, this program was of limited usefulness in bringing engineer units to full capability, particularly in the face of equipment shortages within units as they underwent training. The relatively slow rate at which new men could be trained and made available through established training bases presented a particularly acute problem to new diverse engineer units demanding a high degree of technical expertise. (Table 1)

A most serious problem was the shortage among enlisted men of qualified noncommissioned officers. Throughout the process of recruit training, stress was placed on the development of leadership qualities as well as technical proficiency. Those individuals who demonstrated talent for leadership were singled out early in their training cycles and given opportunities to qualify for advancement to positions of greater responsibility through assignment to a noncommissioned officer academy or an officer candidate school. Since there was a critical need to develop noncommissioned officers rapidly and continuously, academies were organized to produce competent noncoms in much the same way as the officer candidate schools produced second lieutenants. Forts Leonard Wood and Belvoir conducted courses designed to instruct new noncommissioned officers in leadership principles and to improve their technical proficiency before they were sent to Vietnam. Some of these men became of further value to the Army by returning from service

TABLE 1-ENGINEER OFFICER AND ENLISTED SPECIAL SKILLS REQUIRED AND AVAILABLE IN NONDIVISIONAL UNITS IN SOUTH VIETNAM, JANUARY 1968

Engineer Officer Requirements, US Army, Vietnam

Grade

Required

Operational

Colonel

29

26

Lieutenant Colonel

119

110

Major

253

186

Captain

755

278

Lieutenant

1,056

1,247

Warrant Officer

141

107

Total

2,353

1,954

Engineer Enlisted Military Occupational Specialties (MOS)
US Army, Vietnam

MOs

Title

Authorized

Operational

12A10a

Pioneer

2,281

4,078

12B20

Combat Engineer

3,465

2,754

12B2N

Combat Engineer

0

13

12B30

Combat Engineer

939

534

12B40

Combat Engineer

1,739

1,085

12B4N

Combat Engineer

0

34

12B50

Combat Engineer

27

19

12C20

Bridge Specialist

835

656

12C30

Bridge Specialist

0

24

12C40

Bridge Specialist

220

207

12C50

Bridge Specialist.

1

1

12D40

Combat Engineer Operations and Intelligence NCO

24

12

12D50

Combat Engineer Operations and Intelligence NCO

4

3

[18]


Engineer Enlisted Military Occupational Specialties (MOs)
US Army, Vietnam
-Continued
MOs Title Authorized Operational

12Z50

Combat Engineer Senior Sergeant

157

139

51A10a

Construction and Utilities Specialist

837

416

51B20a

Carpenter

1,588

1,999

51C20

Structures Specialist

158

63

51C30

Structures Specialist

111

55

51D20

Mason

187

147

51E20

Camouflage Specialist

0

4

51E40

Camouflage Specialist

2

1

51F20

Pipeline Specialist

56

30

51F40

Pipeline Specialist

66

26

51F50

Pipeline Specialist

7

1

51G20

Soils Analyst

63

56

51H40

Construction Foreman

557

380

51H50

Construction Foreman

125

109

51H20

Heating and Ventilation Specialist

21

12

51F30

Heating and Ventilation Specialist

16

10

51K20

Plumber

653

462

51L20a

Refrigeration Specialist

199

199

51M20

Firefighter

378

338

51M40

Firefighter

114

61

51N20a

Water Supply Specialist

464

497

51N40

Water Supply Specialist

103

73

51N50

Water Supply Specialist

1

0

51020

Utilities Foreman

74

82

51P40

Terrain Analyst

34

17

52A10

Powerman

404

79

52B20a

Power Operator and Mechanic

938

1,004

52B30

Power Operator and Mechanic

404

222

52C20

Power Pack Specialist

77

15

52D20

Power Generator Repairman

242

134

52D40

Power Generator Repairman

22

22

[19]


TABLE 1-ENGINEER OFFICER AND ENLISTED SPECIAL SKILLS REQUIRED AND AVAILABLE IN NONDIVISIONAL UNITS IN SOUTH VIETNAM, JANUARY 1968-Continued

Engineer Enlisted Military Occupational Specialties (MOs)
US Army, Vietnam

MOs

Title

Authorized

Operational

52E20

Power Station Operator

20

8

52E40

Power Station Operator

6

7

52F20

Electrician

698

479

52G20

High Voltage Electrician

0

2

53B20

Oxygen and Acetylene Production Specialist

75

45

53B40

Oxygen and Acetylene Production Specialist

3

0

53C20

Carbon Dioxide Production Specialist

14

5

53C40

Carbon Dioxide Production Specialist

6

0

62A10

Engineer Equipment Assistant

1,543

838

62B10a

Engineer Equipment Repairman

1,313

1,773

62B30

Engineer Equipment Repairman

686

838

62B40

Engineer Equipment Repairman

42

41

62C20

Engineer Missile Equipment Specialist

8

50

62C30

Engineer Missile Equipment Specialist

10

13

62C40

Engineer Missile Equipment Specialist

7

13

62D20a

Surfacing Equipment Specialist

347

395

62D40

Surfacing Equipment Specialist

40

30

62E20a

Construction Machine Operator

3,915

4,715

62E30

Construction Machine Operator

596

284

62E40

Construction Machine Operator

460

452

62E50

Construction Machine Operator

30

12

62F20a

Crane Shovel Operator

131

604

62F30

Crane Shovel Operator

813

394

62G20a

Quarryman

396

421

[20]


Engineer Enlisted Military Occupational Specialties (MOs)
US Army, Vietnam-
Continued

MOs

Title

Authorized

Operational

62G30

Quarryman

566

21

62G40

Quarryman

27

29

81A10

General Draftsman

158

113

81B20a

Construction Draftsman

186

231

81B40

Construction Draftsman

6

6

81C20a

Cartographic Draftsman

80

66

81C40

Cartographic Draftsman

7

3

81C50

Cartographic Draftsman

4

2

81D20a

Map Compiler

6

7

81D30

Map Compiler

12

4

81D40

Map Compiler

6

5

81F20

Illustrator

23

41

81F40

Model Maker

0

3

82A10

Rodman and Tapeman

117

10

82A20

Construction Surveyor

142

178

82B40

Construction Surveyor

22

9

82D20a

Topographic Surveyor

24

38

82D40

Topographic Surveyor

8

7

82E20

Topographic Computer

14

16

82E40

Topographic Computer

2

3

Total

30,162

28,284


a Military occupational specialties for which advanced individual training was provided during 1965-1970.

[21]


CHART 3-GRADUATES OF OFFICER CANDIDATE SCHOOL AT FORT BELVOIR,
CUMULATIVE OUTPUT, 1966-1971

Chart 3: Graduates of Officer Candidate School at Fort Belvoir, Cumulative Output, 1966-1971
Chart 3

in Vietnam and teaching new recruits, but many at the conclusion of two years of draft service took with them to civilian life their Army-developed skills and experience.

The expansion of the officer candidate school system provides one of the more easily chronicled examples of the race between requirements and resources in the period of troop buildup. In the spring of 1965 the dearth of junior engineer officers was even more critical than that of noncommissioned officers. In response to this urgent need for new leadership talent, the Engineer Officer Candidate School at Fort Belvoir was reactivated in the fall of 1965. The

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first class began on 15 November, and by 30 June 1966, 1,132 junior engineer officer graduates had been commissioned. The number climbed steadily and when the school at Fort Belvoir closed on 1 January 1971 it had graduated a total of 10,380 second lieutenants, not all of whom entered the Corps of Engineers. (Chart 3)

Because the engineers lacked the manpower base in the active Army at the beginning of the troop buildup and because the facilities for engineer recruit training were largely limited to two posts, units going to South Vietnam during the first year of the buildup proved short of engineer experience and skills. But the engineers' reputation for resourcefulness and determination which became their trademark in Vietnam had its beginning in their preparations for deployment. The professional Engineer Corps commanders at all levels continuously strove to bring newly activated or reorganized units to an acceptable degree of readiness in spite of compressed training times and frequently in the face of understrength cadres and equipment shortages.

The first contingent of US Army engineers in Vietnam faced the challenge of developing a base of support activities in a combat zone with a logistical backup consisting of a single source of supplies at a distance of nine to twelve thousand miles across the Pacific Ocean. When the decision was made in 1965 to expand the role of the United States in the defense of the Republic of Vietnam, it was apparent at once that a large complex of airfields, roads, ports, pipelines, storage facilities, and cantonments to support tactical operations would be needed. And soon after he arrived in South Vietnam the engineer soldier-enlisted man or officer-realized that he was essential to the total effort. His sense of purpose and his ability to improvise with whatever materials could be scraped together quickly made him indispensable.

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