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 | 20th Div 20th Engineer Rgt 2nd Coy Material Sect (Japanese) |
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| 20th Div 78th Infantry Regt 1st Bn 2nd Coy (Japanese) |
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| 20th Div 79th Infantry Regt (Japanese) |
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| 20th Div 80th Infantry Regt 1st Bn 3rd Coy 2nd Pl (Japanese) |
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| 20th Div 80th Infantry Regt 1st Bn 4th Coy 2nd Pl (Japanese) |
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| 20th Div 80th Infantry Regt 2nd Bn Machine Gun Coy (Japanese) |
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| 20th Div 80th Infantry Regt ASA Force 2054 (Japanese) |
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| 20th Div 80th Regt 3rd Bn 9th Coy 1st Pl 2nd Sect (Japanese) |
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| 20th Div Engineer Regt 2nd Coy (Japanese) |
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| 20th Div HQ Korea 2099 Force (Japanese) |
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| 20th Div HQ (Japanese) |
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| 20th Div Signals Unit (Japanese) |
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| 20th Div (Japanese) |
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| 20th Division 1st Field Hospital (Japanese) |
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| 20th Division 2086 Unit (Japanese) |
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| 20th Division 26th Field Artillery Regt 8th Coy (Japanese) |
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| 20th Division 26th Field Artillery Regt (Japanese) |
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 | 20th Division 2nd Field Hospital (Japanese) |
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| Central Pacific |
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| Melanesia (PNG, Irian Jaya & Solomon Islands) |
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| Anamo |
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| Baiba |
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| Bau-ak |
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| Erima |
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| Hansa Bay |
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| Huon Peninsula |
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| Marienberg |
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| Melanesia (PNG, Irian Jaya & Solomon Islands) |
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| Nangapo |
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| New Guinea |
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