The Lost Bombproof German Bunkers Of World War One | The Great Underground War | Timeline

An exploration of newly discovered fortresses, dugouts, and bunkers tells the story of the innovative German engineering that made defenses resistant to massive bombardments. Discover the past on History Hit with ad-free exclusive podcasts and documentaries released weekly presented by world renowned historians Dan Snow, Suzannah Lipscomb, Matt Lewis and more. Get 50% off your first 3 months with code ’TIMELINE’ 👉 You can find more from us on: @timelineworldhistory This channel is part of the History Hit Network. Any queries, please contact owned-enquiries@