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AIR RAID SHELTER |
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| UF |
Bomb Shelter |
| SN | A fortified structure used to protect civilians and military personnel from enemy bombing. |
| CL |
DEFENCE |
| BT | CIVIL DEFENCE SITE |
| NT |
ANDERSON SHELTER
BLAST SHELTER |
| RT |
AIR RAID WARDENS POST
HOME GUARD SHELTER NUCLEAR BUNKER UNDERGROUND MILITARY HEADQUARTERS UNDERGROUND STRUCTURE WAR SHELTER
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