| Abbreviation | Definition |
|---|---|
| USIA | United States Information Agency |
| USIB | United States Intelligence Board |
| USIC | United States Interdiction Coordinator |
| USIGS | United States Imagery and Geospatial System |
| USJFC | United States Joint Forces Command |
| USJFCOM | United States Joint Forces Command |
| USJTF | United States Joint Task Force |
| USLANTCOM | United States Atlantic Command |
| USLANTFLT | United States Atlantic Fleet |
| USLO | United States Liaison Officer |
| USM | United States Marines |
| USMA | U S Military Academy |
| USMA | United States Military Academy |
| USMAFIA | United States Military Assisting Foreign Intelligence Agencies |
| USMARCENT | U.S. Marine Forces Central Command |
| USMARFORCENT | United States Marine Component, Central Command |
| USMARFORCENT | United States MARine FORces Component, CENTral Command |
| USMARFORLANT | United States Marine Component, Atlantic Command |
| USMARFORLANT | United States MARine FORces Component, AtLANTic Command |
| USMARFORPAC | United States Marine Component, Pacific Command |