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| BRITISH ARMY | |
| BRITISH ARMY AID GROUP, CHINA (1942-5) | |
| BRITISH ARMY (AUSTRALIA, PRE 1870) | |
| BRITISH BORNEO CIVIL AFFAIRS UNIT | |
| BRITISH BROADCASTING CORPORATION | |
| British Commonwealth Forces in Korea | |
| BRITISH COMMONWEALTH OCCUPATION FORCE | |
| BRITISH EXPEDITIONARY FORCE | |
| BRITISH FORCES | |
| BRITISH SOLOMON ISLANDS PROTECTORATE DEFENCE FORCE BROWNIES | |
| BSIPDF | |
| BULGARIAN FORCES | |
| BULK ISSUE PETROL AND OIL DEPOTS | |
| BULK PETROLEUM STORAGE COMPANIES | |
| BUNA BASE SUB AREA | |
| BURMA THAILAND RAILWAY | |
| BYRON SCOTTISH REGIMENT | |
C unit names | |
D unit names | |
E unit names | |
F unit names | |
G unit names | |
H unit names | |
I unit names | |
| ILLAWARRA REGIMENT | |
| IMPERIAL BUSHMEN CORPS | |
| IMPERIAL CAMEL BRIGADE | |
| IMPERIAL CAMEL CORPS | |
| IMPERIAL JAPANESE ARMY | |
| IMPERIAL JAPANESE NAVY | |