| Acronym | Meaning |
| ISL | Iceland (ISO 3166 Trigram) |
| OSD | U.S. Office Of The Secretary Of Defense |
| BCIS | Battlefield Combat Identification System |
| IR | Infrared - Intelligence Requirement (military) -Iran (FIPS 10-4 Country Code; ISO 3166 Digram) - Iran Air (IATA Alpha Code) See Entry For More |
| RADB | Rad51/Dmc1 Homologous Protein |
| BAT | Basic Aid Training |
| ASBL | Association Sans But Lucratif (French Non-profit Organisation) |
| SAU | Saudi Arabia (ISO 3166 Trigram) |
| DSPMS | D.s.p.m. Suivre (Latin |
| GMPCS | Global Mobile Personal Communications By Satellite |