The Czech hedgehog (Czech: rozsocháč) or ježek, was a static anti-tank obstacle defence made of angled iron (that is, lengths with an L- or H- shaped cross section) deployed during World War II by various combatants.
The hedgehog is very effective in keeping tanks from getting through a line of defence. It maintains its function even when tipped over by a nearby explosion. Although it may provide some scant cover for infantry, infantry forces are generally much less effective against fortified defensive positions than mechanized units.
Read more about Czech Hedgehog: History, Technical Details
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