| MAC | Military Airlift Command |
| MEDDAC | Medical Activitiy |
| MI | Military Intelligence |
| MOBA | Military Operations in Built-up Areas |
| MOS | Military Occupational Specialty |
| MOUT | Military Operations in Urban Terrain |
| MP | Military Police |
| MRE | Meals Ready to Eat |
| MTA | Major Training Area |
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