| | | |
| MEDICAL RECEIVING STATIONS | |
| MEDICAL TRAINING UNITS | |
| MEDICAL UNITS | |
| MEDIUM ARTILLERY UNITS | |
| MELBOURNE FORTRESS | |
| MELBOURNE UNIVERSITY REGIMENT | |
| MENADO FORCE | |
| MERAUKE FORCE | |
| MERCANTILE MARINE | |
| MERCHANT NAVY | |
| MERCHANT SHIPS | |
| MERRI REGIMENT | |
| MFO MULTINATIONAL FORCE AND OBSERVERS, SINAI | |
| MILITARY ADMINISTRATIONS | |
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| MILITARY BOARD | |
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| MILNE BAY SUB AREA | |
| MILNE FORCE | |
| MINISTRY OF INFORMATION (UK) | |
| MINURSO | |
| MINURSO UNITED NATIONS MISSION FOR THE REFERENDUM IN THE WESTERN SAHARA MOBILE BACTERIOLOGICAL LABORATORIES | |
| MOBILE BATH UNITS | |
| MOLONGLO INTERNMENT CAMP | |
| MONASH UNIVERSITY REGIMENT | |
| MONTEVIDEO MARU | |
| | BT JAPANESE NAVY SHIPS | |