5. Dummy Heads and Periscopes

To reduce casualties from sniper fire, soldiers ingeniously deployed dummy heads made of papier-mâché or wood above the trenches. These decoys lured enemy marksmen into revealing their positions, while the real men stayed safely hidden. Meanwhile, periscopes allowed troops to survey no man’s land without exposing themselves. As reported by the BBC, these clever devices became vital tools for observation and deception, saving countless lives in the process.



