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Show RESOURCES OF JAPANESE ARE NOT KNOWN Secretary of the Navy Frank Knox points out that without adequate ade-quate shipping Japan cannotmain-tain cannotmain-tain its. position in the South Pacific. Mr. Knox explains that losses inflicted upon the Japanese merchant mer-chant fleet by planes and submarines subma-rines constitute a part of the process pro-cess of attrition, which is a "most serious factor" in Japan's military future. The effort to estimate available Japan e s e shipping facilities is speculative, adds the Secretary, who points out that we had no accurate information as to how many ships Japan had before the war started and do not know their ability to build ships. |