https://creativecommons.org/publicdomain/zero/1.0/ https://www.rawpixel.com/image/2041328 British Islands approximate positions of minefields (1918) by William Rea Furlong. Original from Library of Congress.…

British Islands approximate positions of minefields (1918) by William Rea Furlong. Original from Library of Congress. Digitally enhanced by rawpixel.

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