 |  | | |
| ST KILDA REGIMENT | |
| STAGING CAMPS | |
| STANLEY PRISONER OF WAR CAMP | |
| STANLEY REGIMENT | |
| STATE EMERGENCY SERVICES | |
| STATIONARY HOSPITALS | |
| STEIERMARK | |
| STTS | |
| SUPPLIES AND TRANSPORT UNITS | |
| SUPPLY AND TRANSPORT DRIVING AND MAINTENANCE SHED | |
| SUPPLY DEPOT COMPANIES | |
| SUPPLY DEPOT PLATOONS | |
| SUPPLY PERSONNEL UNITS | |
| SUPPLY PLATOONS | |
| SUPPLY RESERVE DEPOTS | |
| SUPREME COMMANDER FOR THE ALLIED POWERS | |
| SURVEILLANCE UNITS | |
| SURVEY UNITS | |
| SWAN REGIMENT | |
| SWISS FORCES | |
| SWPA | |
| SYDNEY FORTRESS | |
| SYDNEY UNIVERSITY REGIMENT | |
T unit names | |
U unit names | |
| U BOATS | |
| U HEAVY BATTERY | |
| UN PEACEKEEPING FORCES | |
| UNAMIR - UN ASSISTANCE MISSION IN RWANDA | |
| UNIFIL - UN INTERIM FORCE IN LEBANON | |