There is a cunning and deadly device that used by armies in the past, and up to the present day. It’s a weapon mostly overlooked but is yet brilliantly effective—the caltrop. The caltrop (or calthrop) is a crude, cheap, iron ball with spikes. It is an anti-personal weapon used to slow down troops on foot, horses, war elephants, and even tires on small vehicles. Bigger versions were used against tanks and water landing craft. Caltrops came with three prongs, or even four, and to use the weapon required no skill at all, other than watching where you stepped once you placed it! Simply scatter in the vicinity of your intended host, and they’ll find it. Once the enemy marched over
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