Tunnel, First World War. 隧道, 第一次世界大戰

Stretcher bearers of the 9th Field Ambulance, asleep on the railway embankment in front of Thames House, near Zonnebeke Railway Station in Belgium

Tunnels reveal First World War sappers underground battle | Daily Mail Online
Read more: http://www.dailymail.co.uk/news/article-4248972/Tunnels-reveal-World-War-sappers-underground-battle.html#ixzz4ZRGRaWSS
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