| | | |
N unit names | |
O unit names | |
P unit names | |
Q unit names | |
R unit names | |
S unit names | |
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 | |
| UNITAF UNIFIED TASK FORCE IN SOMALIA | |
| UNITED NATIONS | |
| UNITED NATIONS PEACEKEEPING FORCES | |
| UNITED PROTESTANT ASSOCIATION | |
| UNITED STATES AIR FORCE | |
| UNITED STATES ARMY | |
| UNITED STATES ARMY VESSELS | |
| UNITED STATES FORCES | |
| UNITED STATES MARINE CORPS UNITED STATES NAVY | |
| UNITED STATES NAVY SHIPS | |
| UNIVERSITY OF NEW SOUTH WALES REGIMENT | |
| | BT INFANTRY REGIMENTS | |
| UNMCTT UNITED NATIONS MINE CLEARING TRAINING TEAM, AFGHANISTAN/PAKISTAN | |
| UNSCOM UNITED NATIONS SPECIAL COMMISSION, IRAQ | |
| UPA | |
| US 1 CAVALRY DIVISION | |
| US 11 AIRBORNE DIVISION | |