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U-Boats Destroyed
Robert M. Grant
出版Periscope Publishing Ltd., 2002-06
主題History / Europe / GeneralHistory / World
ISBN19043810069781904381006
URLhttp://books.google.com.hk/books?id=E_TE_ARPXdMC&hl=&source=gbs_api
EBookSAMPLE
註釋World War I saw the submarine develop into a potent weapon of war. The German submarine campaign almost defeated Britain during the spring of 1917. By striking at the shipping that supplied her, it has been estimated that Britain came within six weeks of starvation.