Vietnam War
Another Viet Cong trap was the Punji trap. Two wooden platforms were placed and covered with leaves to camouflage it. There were spikes on the inside of the wood. When a soldier came along and walked on the wood, it caved in, and the spikes would go through the soldier’s foot. That trap was the most common because it was the cheapest one and was very effective. It was also often contaminated, often with feces, so that the soldier would also become infected.