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| Basama |
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| Biak |
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| Bismarck Archipelago |
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| Blucher Point |
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| Bogadjim |
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| 18th Army 20th Div (Japanese) |
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| 18th Army 51st Div (Japanese) |
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| 20th Division 4th Field Hospital (Japanese) |
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| 20th Division 78th Infantry Regt (Japanese) |
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| 20th Division 79th Infantry Regt (Japanese) |
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| 20th Division 80th Infantry Regt (Japanese) |
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| 20th Engineer Regt 2nd Coy (Japanese) |
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| 33rd Independent Engineer Regt 2nd Coy (Japanese) |
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| Boiken |
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| Boo Islands |
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| Borgen Bay |
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| Bougainville |
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| Buka Island |
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| Buna |
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