| Acronym | Meaning |
 | SVC | Secondary Visual Cortex |
| TACCSF | U.S. Theater Aerospace Command & Control Simulation Facility |
| RHU | Replacement Holding Unit |
| LS | Landing Support -Lesotho (ISO 3166 Digram) - Liechtenstein (FIPS 10-4 Country Code) -locus Sigilli (Latin |
| ISEN | Internet Search Environment Number |
| AT | Anti-Tank -Ashmore And Cartier Islands (FIPS 10-4 Territory Code) - Austria (ISO 3166 Digram) -Advanced Technology (IBM Personal Computer/AT) |
| CRI | Costa Rica (ISO 3166 Trigram) |
| NORAD | North American Aerospace Defense Command |
| SREL | Savannah River Ecology Laboratory |
| DIS | Defence Intelligence Staff - (U.S.) Defense Investigative Service - Distributed Interactive Simulation - Draft International Standard (ISO) |
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