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  | Bau-ak |
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  | 20th Division 2nd Field Hospital (Japanese) |
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 | 20th Division 78th Infantry Regt 1st Infantry Gun Det (Japanese) |
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  | 39th Independent Motor Car Bn 4th Coy 1st Pl (Japanese) |
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 | 49th Division 168th Infantry Regt (Japanese) |
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  | 4th Division 8th Regiment Army Service Corps (Japanese) |
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 | 4th Line of Communication Engineer Unit (Japanese) |
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  | Biak Island |
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  | Bismarck Sea |
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  | Bobdubi |
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  | Bogia |
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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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