| Abbreviation | Definition |
|---|---|
| RDTST | Rapid Data Transmisstion System for Requisitioning |
| RDTU | Remote Data Transmission Unit |
| RDTZ | Reserve Division Tactical Zone |
| RDV | Rapid Deployment Vehicle |
| RDW | Rapid Deployment Weapon |
| RDX | Rapid Detonating Explosive |
| RDX | Research Department eXplosive |
| RDX | Royal Demolition eXplosive |
| RDY | Ready |
| RDYLD | Ready to Load |
| RE | Rear Echelon |
| RE | Re-Engined |
| RE | Reference |
| REAC/TS | Radiation Emergency Assistance Center/training Site (DOE) |
| REACH | Reaffirming Ethnic Awareness And Cultural Harmony |
| READR | Remain in Effect After Discharge and Re-Enlistment |
| READY | Resource Augmentation Duty Program |
| READY | Resources For Educating About Deployment And You |
| READY | Resources For Education About Deployment And You |
| REAL | Recruiting Educating Activating And Leading |