Cheval de frise
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The cheval de frise is a defensive obstacle, existing in a number of forms, principally as a static anti-cavalry obstacle but also quickly movable to close breaches. The term was also applied to under
A Confederate cheval de frise at the Fort Mahone defenses during the siege of Petersburg
The knife rest, or Spanish rider – a modern wire obstacle of similar function – is sometimes also called cheval de frise.
Chevaux de frise, according to the later use of the term, could include broken glass studding the top of a wall in a nineteenth-century fort.
Outline showing the structure of a Cheval de frise for river use: Illustration A: Side view; Illustration B: Top view
Czech hedgehog
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The Czech hedgehog is a static anti-tank obstacle defense made of metal angle beams or I-beams. It is similar in shape to metal knucklebones, although on a much larger scale. The hedgehog is very effe
Cheval de frise
…small promontory on the north-east Essex coast in the United Kingdom (UK), between Holland Haven and Frinton-on-Sea, was named Chevaux de Frise Point. Czech hedgehog…
Czech hedgehogs deployed at the Stachelberg fortress in the Czech Republic
Ancient Roman sudes arranged to resemble a Czech hedgehog
Examples of Czech hedgehogs deployed on the Atlantic Wall in the vicinity of Calais
Entry point of the West Berlin S-Bahn into East Berlin near the Berlin Wall in Liesenstrasse/Gartenstrasse, 1980