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  | Boiken |
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  | 17th Special Sea Duty Coy (Japanese) |
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 | 18th Army (Japanese) |
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  | 21st Mortar Bn (Japanese) |
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 | 40th Field Road Construction Unit 2nd Coy (Japanese) |
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  | 40th Field Road Construction Unit 3rd Coy (Japanese) |
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 | 44th Line of Communication Sector Unit (Japanese) |
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  | 50th Construction Duty Coy (Japanese) |
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  | Bonga |
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  | Boram |
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  | Bot Bot River |
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  | Buin |
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  | Bumi River |
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  | Buna Area |
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   | Buso River–Finschhafen Area |
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  | But |
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  | Cape Bushing |
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  | Cape Gloucester |
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  | Cape Pus |
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  | Central Bougainville |
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