Glossary
| AID | Agency for International Development |
| AM2 | Aluminum matting used on airstrips |
| Bailey bridge | A bridge designed for rapid construction from interchangeable latticed steel panels that are coupled with steel pins |
| "Buddy System" | Program initiated in 1969 which placed South Vietnamese units under U.S. unit sponsorship for on-the-job training |
| C-123 | Cargo-transport aircraft |
| C-130 | Cargo-transport aircraft |
| CEDAR FALLS | Joint operation carried out by the 1st and 25th Infantry Divisions, 173d Airborne Brigade, 11th Armored Cavalry Regiment, and South Vietnamese Army units against Viet Cong Military Region 4 headquarters in the Iron Triangle, 8-26 January 1967 |
| CONARC | United States Continental Army Command |
| CONUS | Continental United States |
| DeLong pier | Prefabricated pier used extensively in South Vietnam in developing port quays and ships' berths; these piers could be installed quickly and reclaimed when no longer needed |
| ESSAYONS | Operation in which the 62d Engineer Battalion phased into Phan Rang, September 1965 |
| Hardstand | Hard-surfaced area for parking an airplane or a surface vehicle or supplies |
| Horizontal construction | Engineering term to differentiate construction activities at or near ground level from those associated with structural or finish work normally above ground; included are earthmoving, pav- |
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| Horizontal construction (continued) | ing, and simple drainage features involving much heavy equipment but few building trade skills |
| Huey | UH-1D helicopter |
| JUNCTION CITY | Operation conducted in War Zone C (Tay Ninh Province) and bordering provinces by twenty-two U.S. battalions and four South Vietnamese Army battalions, elements of the U.S. 1st, 4th, and 25th Infantry Divisions, 196th Light Infantry Brigade, 11th Armored Cavalry Regiment, and 173d Airborne Brigade, 22 February-14 May 1967 |
| LST | Landing ship, tank |
| MACV | United States Military Assistance Command, Vietnam |
| One-Buck | Code designation for units held in readiness in the United States for deployment on 48-hour notice |
| PEGASUS | Operation conducted by the 1st Cavalry Division (Airmobile) with U.S. Marine and Vietnamese Army airborne battalions to relieve the siege of Khe Sanh, 1-15 April 1968 |
| POL | Petroleum, oils, and lubricants |
| Red ball system | Shipping system designed to expedite the movement of specific urgently needed items from the United States to Vietnam |
| Rome Plow | Specially equipped bulldozer capable of heavy-duty land clearing |
| Seabees | Navy construction battalions |
| STRAF | United States Strategic Army Forces |
| SWITCHBLADE | Joint project begun on 15 December 1969 in which three Vietnamese land clearing companies were assigned to the U.S. 62d Engineer Battalion for training and deployed with their counterparts to War Zone C for forty-five days of land clearing operations in support of various U.S. combat units |
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| T17 membrane | A tough, rubberized fabric used as an expedient airfield surfacing material on runways, taxiways, and parking areas |
| USARV | United States Army, Vietnam |
| Vertical construction | Engineering term to differentiate construction activities above ground level from those associated with earthmoving or paving; it includes efforts by carpenters, masons, steelworkers, plumbers, electricians, and other building tradesmen. Vertical construction is characterized by high commitment of manpower and hand tools while horizontal construction employs a preponderance of heavy equipment. |
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