History: Notre Dame surrounded by sandbags, inside and out, during World War One, 1917. [990 x 723]

https://i.redd.it/gpr8i2bwapx51.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/jpfkfp/notre_dame_surrounded_by_sandbags_inside_and_out/?utm_source=ifttt