Chevaux-de-frise
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| U.S. Army Military History Institute, Carlisle Barracks, PA |
Chevaux-de-frise was a defensive structure situated in front of earthworks. They were logs that measured about 12 feet long and 10 inches thick, drilled through every foot at right angles for sharpened stakes which projected 3 feet. Chevaux-de-frise were most common among the Confederate fortifications.