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 | 18th Army HQ Military Police Sect KAMI Organization (Japanese) |
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 | 18th Army HQ (Japanese) |
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 | 18th Army Intendance Unit (Japanese) |
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 | 18th Army Judicial Dept (Japanese) |
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 | 18th Army Logistics HQ (Japanese) |
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 | 18th Army Medical Dept (Japanese) |
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 | 18th Army Medical Sect (Japanese) |
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 | 18th Army Military Police Wewak Squad (Japanese) |
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 | 18th Army Military Police (Japanese) |
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 | 18th Army MO Signal Unit (Japanese) |
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 | 18th Army Ordnance Dept (Japanese) |
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 | 18th Army Provisional Transport Unit (Japanese) |
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 | Melanesia (PNG, Irian Jaya & Solomon Islands) |
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  | Buna Area |
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  | Giruwa |
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  | Kokoda–Wairopi Area |
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  | Kumusi River |
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  | Melanesia (PNG, Irian Jaya & Solomon Islands) |
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  | Owen Stanley Range |
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  | Papaki |
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  | Papua |
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 | 18th Army shipping unit (Japanese) |
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 | 18th Army Staff Sect (Japanese) |
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 | 18th Army (Allied) |
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 | 18th Army (Japanese) |
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 | 18th Division (Japanese) |
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 | 18th Special Sea Duty Coy (Japanese) |
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 | 19th Army HQ (Japanese) |
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 | 19th Army Staff HQ (Japanese) |
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 | 19th Army (Japanese) |
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