British defenses of WWI

https://www.theguardian.com/world/2017/aug/05/miles-of-forgotten-trenches-dug-in-england-during-first-world-war-unearthed-again?utm_source=esp&utm_medium=Email&utm_campaign=GU+Today+main+NEW+H+categories&utm_term=238175&subid=22160599&CMP=EMCNEWEML6619I2

A little footnote to The Great War.


(Thanks for the link, Ed!)