UBOAT
U-boat
U-boat is the anglicized version of the German word U-Boot, a shortening of Unterseeboot, which means "undersea boat". While the German term refers to any submarine, the English one refers specifically to military submarines operated by Germany, particularly in World War I and World War II. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role, enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada, the ...The above text is a snippet from Wikipedia: U-boat
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