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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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| Cromwell Range |
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| 115th Infantry Regt 3rd Bn 11 Coy (Japanese) |
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| 115th Infantry Regt 3rd Bn 11th Coy 2nd Pl 2nd Sect (Japanese) |
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| 115th Infantry Regt Regt HQ Signals Coy (Japanese) |
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| 115th Regt Communications Unit 1st Pl 2nd Sect (Japanese) |
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| 155th Infantry Regt 3rd Bn 12 Coy (Japanese) |
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| 18th Army Headquarters Azuma Unit 1st Coy 2nd Sect (Japanese) |
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