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The Czech hedgehog (Czech: rozsocháč or ježek) is a static anti-tank obstacle defense made of metal angle beams or I-beams (that is, lengths with an L- or 𝐈-shaped cross section). It is similar in shape to metal knucklebones , although on a much larger scale.
The Czech hedgehog, dragon's teeth and cointet-element are the most famous types of World War II anti-tank obstacles. Anti-tank trenches were used on the western front during World War I, and in the Pacific, Europe, and Russia in World War II. Anti-tank mines are the most common anti-tank obstacles. For implementation of various anti-tank ...
The Czech hedgehog is an antitank defense that, for Americans and Russians alike, evokes images of World War II. Moscow has a monument of Czech hedgehogs to mark the farthest that Nazi soldiers ...
Russian anti-tank obstacles near the horizon, Kherson Oblast, May 2022. Dragon's teeth on the left, Czech hedgehogs on the right In Belgorod Oblast, defensive lines of dragon's teeth were constructed in October 2022 under the supervision of the Wagner Group along the Russia–Ukraine border, intended as a second line of defense alongside trenches and a trained militia in the event the ...
As dragon's teeth are immobile, the analogy with the caltrop is inexact. Another caltrop-like defence during World War II was the massive steel, freestanding Czech hedgehog; the works were designed as anti-tank obstacles and could also damage landing craft and warships that came too close to shore.
The most common types were Czech hedgehogs (Panzersperre) or cheval de frise (Stahligel or "steel hedgehogs"). These anti-vehicle devices were constructed from three or four pairs of 1.5-metre-long (4.9 ft) rails welded together to form a steel obstacle weighing over 500 kilograms (1,100 lb) – heavy enough to stop a motor vehicle from pushing ...
A prototype tusk-like assembly was created by welding steel scrap (from destroyed "Czech hedgehogs") to the front of a tank to create a hedge cutter. The teeth helped prevent the vulnerable underside of the tank from being exposed while it knocked a hole in the hedgerow wall.
Dragon's teeth and Czech hedgehogs in Kherson Oblast, 2022. During the Russian invasion of Ukraine that started in 2022, both belligerents have built extensive fortifications in the respective theaters of war, which have proven pivotal for the war effort.