Abatis
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An abatis, abattis, or abbattis is a field fortification consisting of an obstacle formed of the branches of trees laid in a row, with the sharpened tops directed outwards, towards the enemy. The tree
Abatis improvised by Japanese troops during World War II
Giant abatis, made from entire trees, can make an effective anti-vehicle obstacle. This formation can be achieved by use of explosives—note the splintered stumps
Abatis can be defeated by dozer blades, as fitted here to a British Challenger 2 tank
Great Zasechnaya cherta
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The Zasechnaya cherta was a chain of fortification lines, created by the Grand Duchy of Moscow and later the Tsardom of Russia to protect it from the Crimean-Nogai Raids that ravaged the southern prov
Abatis
…when barbed wire is in short supply. A form of giant abatis, using whole trees instead of branches, can be used as an improvised anti-tank obstacle. Great Zasechnaya cherta Cheval de frise…
M. Presnyakov. Great Abatis Border. 2010. Oil on canvas.