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Despite how deadly all this LOOKS I'd say most of the injuries were likely more in the imagination of second-hand chroniclers like the illustrator of these popular 1960's bubblegum cards! There were basically two types of these,
fraises or
chevaux-de-fraise below and the sharpened palings above. Of course this was in the pre-barbed wire age, and the period equivalent that is seldom seen represented was
abatis which was nothing more than piles of cut brush or even tree limbs with the twigs and branches left on but sharpened and pointing towards the enemy. Abatis was the most common and effective obstacle used on Civil War battlefields, mainly due to its easy availability and simplicity of manufacture. Creation of fieldworks like
gabions,
sap rollers, and
chevaux-de-fraise were both time-consuming and labor-intensive.
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These two are notably preposterous for a couple of reasons: the impaling above is physically impossible (and cavalry wouldn't be charging fieldworks in the first place); the scene below is equally unlikely due to the
weight of the chevaux-de-fraise, easily several hundred pounds. These were normally placed out in front of prepared works and were intended to do two things: break up linear formations of assaulting battlelines; and slow those lines down so they could be pounded by artillery within the "killing zone" at close range appropriate for that most deadly anti-personnel projectile, canister.
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