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| 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 | |
| UNMCTT UNITED NATIONS MINE CLEARING TRAINING TEAM, AFGHANISTAN/PAKISTAN | |
| UNSCOM UNITED NATIONS SPECIAL COMMISSION, IRAQ | |
| UPA | |
| US 1 CAVALRY DIVISION | |
| US 11 AIRBORNE DIVISION | |
| US 129 INFANTRY REGIMENT | |
| US 132 INFANTRY REGIMENT | |
| US 162 INFANTRY REGIMENT | |
| US 173 AIRBORNE BRIGADE | |
| US 182 INFANTRY REGIMENT | |
| US 32 INFANTRY DIVISION | |
| US 340 ENGINEER REGIMENT | |
| US 37 INFANTRY DIVISION | |
| US 41 INFANTRY DIVISION | |
| US 43 INFANTRY DIVISION | |
| US 503 PARACHUTE INFANTRY REGIMENT | |
| US 93 INFANTRY DIVISION | |
| US ARMY | |
| US ARMY 135 MEDICAL REGIMENT | |
| US ARMY 14 CORPS | |
| US ARMY AIR CORPS | |
| US ARMY AMERICAL DIVISION | |
| US ARMY ENGINEER BOAT AND SHORE REGIMENTS | |
| US ARMY MEDICAL CORPS | |
| US ARMY NURSE CORPS | |
| US ARMY SPECIAL ENGINEER BRIGADES | |
| US ARMY VESSELS | |
| USAAC | |
| USAAF | |
| USMC | |
| USN | |
| USS FRANK E EVANS | |
| USS LEXINGTON | |
| USSR FORCES | |
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