World of Weapons (2020)

S1E8 The Ambush

Surprising the enemy with undetectable weapons until the moment of impact is a cunning yet effective military tactic. A group of weapon specialists examines three notable innovations: the caltrop from ancient Rome, designed to incapacitate horses and soldiers by scattering sharp iron spikes across battlefields; the Dreyse needle gun, which revolutionized military strategies for future forces; and the landmine, a long-standing weapon that has been significantly enhanced by contemporary technology.