1. Multiple Countries Involved in WWI Created Observation Posts to Look Like Trees
Many countries’ armed forces used large posts disguised as trees to spy on each other. The French were responsible for the idea, starting the revolutionary trend in 1915. However, the British and the Germans quickly followed suit.
The steel “trees” had well-made exteriors, covered in bark and leaves to appear normal amongst other foliage in the area. Soldiers would sit atop of them in small seats as lookouts, using periscopes to spy on their enemies. While conditions weren’t optimal, the camouflaged concept worked and successfully helped all sides involved.