With World War 11 ranging in Europe, the Germans we’re fighting a losing battle. They needed to look more powerful than they actually were, so they came up with a solution: build a bunch of fake airfields out of wooden decoys.
But in fact, the Allies soon discovered that all those airfields were nothing more than props. The only thing left to do was to find a way to let the Germans know they weren’t fooling anyone.
So the Allies flew bombing raids over these fake wooden airfields. After several minutes, the Germans finally realized what the Allies were doing. They were dropping fake wooden bombs.