E-3 represent Operation Hikari itself (with some slight historic difference as Tanaka stated in his interview)
E-3 represent Operation Hikari itself (with some slight historic difference as Tanaka stated in his interview)
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E-2 represents the Ogasawara Islands, which served as part of a defense point for the IJN during WWII. Destroyer were often assigned to transport supplies to the islands. This also was the same location in which [[Matsukaze]] sunk at.