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| KENNEDY REGIMENT | |
| KERAVIA BAY PRISONER OF WAR CAMP | |
| KIT STORES | |
| KOOYONG REGIMENT | |
| KOREAN FORCES | |
| KUCHING FORCE | |
| KUCHING PRISONER OF WAR CAMP | |
| KURING-GAI REGIMENT | |
L unit names | |
M unit names | |
N unit names | |
O unit names | |
P unit names | |
| PACIFIC ISLANDS DEPOT BATTALION | |
| PACIFIC ISLANDS REGIMENT | |
| PACK TRANSPORT COMPANIES | |
| PAPUAN INFANTRY BATTALION | |
| PARATROOP UNITS | |
| PARRAMATTA AND BLUE MOUNTAINS REGIMENT | |
| PAY UNITS PERSIAN FORCES | |
| PERSONNEL MOVEMENT UNITS | |
| PETROL SUPPLY UNITS | |
| PHILANTHROPIC ORGANISATIONS | |
| PHOTOGRAPHIC INTERPRETATION UNITS | |
| PHOTOGRAPHIC RECONNAISSANCE UNITS | |
| PHOTOGRAPHIC UNITS | |
| PHYSICAL AND RECREATION TRAINING SCHOOL, FRANKSTON | |
| PIONEER TRAINING BATTALION | |
| PIONEER UNITS | |
| PIR | |