| Abbreviation | Definition |
|---|---|
| AIDS | Army Inventory of Data Systems |
| AIDS | Automated Infantry Data System |
| AIF | Anti-Iraqi Forces |
| AIF | Army Industrial Fund |
| AIF | Australian Imperial Force |
| AIF | Australian Infantry Forces |
| AIF | Automated Installation File |
| AIF | Automated Installation Intelligence File |
| AIFA | AAFES (Army and Air Force Exchange Service) Imprest Fund Activity |
| AIFF | Advanced Identification Friend of Foe |
| AIFS | Advanced Indirect Fire Systems |
| AIG | Address Indicating Group |
| AIG | Addressee Indicator Group |
| AIG | Army Initiatives Group |
| AIIB | Anti Imperialist International Brigade |
| AIIB | Anti-Imperialist International Brigade |
| AIIF | Automated Installation Intelligence File |
| AIIP | Advanced Industry Information Package |
| AIIRS | Automated Intelligence Information Reporting System |
| AIK | Assistance In Kind |