
Introduction The cheval de frise (plural: chevaux de frise, “Frisian horses”) was a defensive obstacle, existing in a number of forms, principally as a static anti-cavalry obstacle but also quickly movable to close breaches. Refer to Czech Hedgehog, Caltrop, Dragon’s Teeth, Makibishi, and Sudis. The term was also applied to underwater constructions used to prevent… Read More
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